Animals & Wildlife Sitemap - Page 5 2016-09-26

Flamingos - Animals and Wildlife - About.com
Flamingos are a group of birds that includes greater flamingos, lesser flamingos, Andean flamingos, American flamingos and several other species. There are a total of 6 species of flamingos alive today. The articles listed below provide information about the characteristics, classification and evolution of flamingos.

Gamebirds - Animals and Wildlife - About.com
Gamebirds are a group of birds that includes a variety of ground-dwelling birds such as chicken, pheasants, grouse, partridges, and others. There are 281 species of gamebirds alive today. The articles listed below provide information about the characteristics, classification and evolution of gamebirds.

Herons, Storks, and Ibises - Animals and Wildlife - About.com
Herons, storks, and ibises are a group of birds that includes storks, ibises, spoonbills, sandpipers, new world vultures, petrels, shearwaters, and painted snipes. There are 119 species of herons, storks, and ibises alive today. The articles listed below provide information about the characteristics, classification and evolution of herons, storks, and ibises.

Pelicans - Animals and Wildlife - About.com
Pelicans are a group of birds that includes blue-footed boobies, brown pelicans, red-billed tropicbirds, cormorants, gannets and great frigatebirds. There are 65 species of pelicans alive today. The articles listed below provide information about the characteristics, classification and evolution of pelicans.

Penguins - Animals and Wildlife - About.com
Penguins are a group of birds that includes emperor penguins, Adelie penguins, Humboldt penguins, macaroni penguins and many more. There are 17 species of penguins alive today. The articles listed below provide information about the characteristics, classification and evolution of penguins.

Nightjars and Frogmouths - Animals and Wildlife - About.com
Nightjars and frogmouths are a group of birds that includes oilbirds, frogmouths, pottos, New World nighthawks, typical nightjars and eared nightjars. There are 115 species of nightjars and frogmouths alive today. The articles listed below provide information about the characteristics, classification and evolution of nightjars and frogmouths.

Hares, Rabbits and Pikas - Animals and Wildlife - About.com
Hares, rabbits and pikas are a group of small terrestrial mammals. There are 80 species of hares, rabbits and pikas alive today. The articles listed below provide information about the characteristics, classification and evolution of hares, rabbits and pikas.

Aardvark - Animals and Wildlife - About.com
The aardvark is a a burrowing, nocturnal mammal and is the only living species in its group. The articles listed below provide information about the characteristics, classification and evolution of anteaters and their relatives.

Bats - Animals and Wildlife - About.com
Bats are a group of mammals that includes flying foxes and fruit bats. There are 997 species of bats alive today. The articles listed below provide information about the characteristics, classification and evolution of bats.

Birds of Prey - Animals and Wildlife - About.com
Birds of prey are a group of birds that includes hawks, kites, eagles, osprey, condors, vultures, kestrals and many other groups. There are about 307 species of birds of prey alive today. The articles listed below provide information about the characteristics, classification and evolution of birds of prey.

Hagfish - Animals and Wildlife - About.com
Hagfish are a group of jawless fishes that includes 50 species. The articles listed below provide information about the characteristics, classification and evolution of hagfish.

Cassowaries and Emus
Cassowaries and emus together form a group of large flightless birds comprised of just four species—three cassowaries and one emu. Cassowaries inhabit New Guinea and Australia, emus are restricted to New Guinea. The articles listed below provide information about the characteristics, classification and evolution of cassowaries and emus.

Cetaceans
Cetaceans are a group of marine mammals that includes toothed whales and baleen whales. There are 83 species of cetaceans alive today. The articles listed below provide information about the characteristics, classification and evolution of cetaceans.

Cranes, Coots and Rails - Animals and Wildlife - About.com
Cranes, coots and rails are a group of birds that includes coots, rails, crakes, bustards and trumpeters. There are 199 species of cranes, coots and rails alive today. The articles listed below provide information about the characteristics, classification and evolution of cranes, coots and rails.

Elephants - Animals and Wildlife - About.com
Elephants are a group of mammals that includes three species--African forest elephants, African savanna elephants and Asian elephants. There are also about 19 extinct elephant species belonging to the mammoth and mastadon genera. The articles listed below provide information about the characteristics, classification and evolution of elephants.

Marsupials - Animals and Wildlife - About.com
Marsupials are a group of mammals that includes opossums, the Tasmanian devil, numbats, bandicoots, wombats, koalas, kangaroos and wallabies. There are 292 species of marsupials alive today. The articles listed below provide information about the characteristics, classification and evolution of marsupials.

Mousebirds - Animals and Wildlife - About.com
Mousebirds are a group of birds that includes speckled mousebirds, white-headed mousebirds, red-faced mousebirds and several other species. There are 6 species of mousebirds alive today. The articles listed below provide information about the characteristics, classification and evolution of mousebirds.

Turtles
Turtles are a group of reptiles that includes hidden-necked turtles and side-necked turtles. There are 293 species of turtles alive today. The articles listed below provide information about the characteristics, classification and evolution of turtles.

Crocodilians - Facts, Classification and Evolution of Crocodilians
Crocodilians are a group of reptiles that includes crocodiles, alligators, caimans and the gharial. There are 23 species of crocodilians alive today. The articles listed below provide information about the characteristics, classification and evolution of crocodilians.

Hummingbirds and Swifts
Hummingbirds and swifts are a group of birds that includes swifts, swiftlets, needletails, hummingbirds, treeswifts, sicklebills and racquet-tails. There are 424 species of hummingbirds and swifts alive today. The articles listed below provide information about the characteristics, classification and evolution of hummingbirds and swifts.

Cnidarians - Animals and Wildlife - About.com
Cnidarians are a group of invertebrates that includes jellyfish, corals, sea anemones, and hydras. There are between 8,000 and 9,000 species of cnidarians alive today. The articles listed below provide information about the characteristics, classification and evolution of cnidarians.

Echinoderms - Animals and Wildlife - About.com
Echinoderms are a group of invertebrates that includes starfish, sea lilies, feather stars, brittlestars, sea cucumbers, and sea urchins and many others. There are about 600 species of echinoderms alive today. The articles listed below provide information about the characteristics, classification and evolution of echinoderms.

Kiwis - Animals and Wildlife - About.com
Kiwis are a group of flightless birds that include brown kiwis, spotted kiwis and several others. There are about 3 species of kiwis alive today—experts disagree on the exact number of species in this group. The articles listed below provide information about the characteristics, classification and evolution of kiwis.

Segmented Worms - Animals and Wildlife - About.com
Segmented worms are a group of invertebrates that includes earthworms, ragworms and leeches. There are about 12,000 species of segmented worms alive today. The articles listed below provide information about the characteristics, classification and evolution of segmented worms.

Sponges - Animals and Wildlife - About.com
Sponges are a group of invertebrates that includes glass sponges, demisponges, and calcareous sponges. There are about 10,000 species of sponges alive today. The articles listed below provide information about the characteristics, classification and evolution of sponges.

Woodpeckers and Toucans - Animals and Wildlife - About.com
Woodpeckers are a group of birds that includes woodpeckers, toucans, barbets, honeyguides, wrynecks, and piculets. There are about 380 species of woodpeckers alive today. The articles listed below provide information about the characteristics, classification and evolution of woodpeckers.

Odd-Toed Hoofed Mammals - Animals and Wildlife - About.com
Odd-toed hoofed mammals includes horses and their relatives, rhinoceroses, and tapirs. There are 19 species of odd-toed hoofed mammals alive today. The articles listed below provide information about the characteristics, classification and evolution of odd-toed hoofed mammals.

Buttonquail - Animals and Wildlife - About.com
Buttonquail are a group of birds that includes species such as the the quail plover, buff-breasted buttonquail, small buttonquail, chestnut-backed buttonquail and the yellow-legged buttonquail. There are about 15 species of buttonquail alive today. The articles listed below provide information about the characteristics, classification and evolution of buttonquail.

Kingfishers - Animals and Wildlife - About.com
Kingfishers are a group of birds that includes kingfishers, toddies, rollers, bea-eaters, motmots, hoopies and hornbills. There are 191 species of kingfishers alive today. The articles listed below provide information about the characteristics, classification and evolution of kingfishers.

Even-Toed Hoofed Mammals - Animals and Wildlife - About.com
Even-toed hoofed mammals includes pigs, hippopotamuses, pronghorn, deer, camels, giraffe, okapi and cattle. There are 225 species of even-toed hoofed mammals alive today. The articles listed below provide information about the characteristics, classification and evolution of even-toed hoofed mammals.

Perching Birds - Animals and Wildlife - About.com
Perching birds are a diverse group of birds that includes flycatchers, creepers, sparrows, antbirds, crows, birds of paradise, warblers, thrushes, and many other species. There are between 5,200 and 5,500 species of perching birds alive today. The articles listed below provide information about the characteristics, classification and evolution of perching birds.

Albatrosses and Petrels - Animals and Wildlife - About.com
Albatrosses and petrels, also known as tube-noses, are a group of seabirds that includes albatrosses, fulmars, prions, shearwaters, storm petrels and diving petrels. There are about 108 species of albatrosses and petrals alive today. The articles listed below provide information about the characteristics, classification and evolution of albatrosses and petrels.

Frogs and Toads
Frogs and toads are a group of amphibians that includes painted frogs, marsupial frogs, true toads, glass frogs, tree frogs, ghost frogs, shovelnose frogs, Darwin's frogs, and many other groups. There are about 4,380 species of frogs alive today. The articles listed below provide information about the characteristics, classification and evolution of frogs and toads.

Cartilaginous Fishes - Animals and Wildlife - About.com
Cartilaginous fishes are a group of fishes that includes sharks, rays, skates, and chimaera. There are 810 species of cartilaginous fishes alive today. The articles listed below provide information about the characteristics, classification and evolution of cartilaginous fishes.

Fossils and Ancient Animals
Each fossil that is discovered gives us invaluable information about the animals and wildlife of the past. A fossil represents the remains of an individual organism—a finite point in a vast ocean of past lifeforms and habitats. Each fossil discovery can help us to better understand both wildife of the past as well as present-day animals and how they relate to one another.

Tinamous - Animals and Wildlife - About.com
Tinamous are a group of birds that includes grey tinamous, great tinamous, black tinamous, little tinamous and many others. There are a total of 45 species of tinamous alive today. The articles listed below provide information about the characteristics, classification and evolution of tinamous.

Waterfowl - Animals and Wildlife - About.com
Waterfowl are a group of birds that includes ducks, swans, geese, and screamers. There are about 149 species of waterfowl alive today. The articles listed below provide information about the characteristics, classification and evolution of waterfowl.

Grebes - Animals and Wildlife - About.com
Grebes are a group of birds that includes typical grebes, North American greves, pied-billed grebes, Australian grebes, South American grebes, least grebes and Atitlan grebes. There are 22 species of grebes alive today. The articles listed below provide information about the characteristics, classification and evolution of grebes.

Loons - Animals and Wildlife - About.com
Loons are a group of birds that includes red-throated loons, black-throated loons, Pacific Loons great northern loons and yellow-billed loons. There are 5 species of loons alive today. The articles listed below provide information about the characteristics, classification and evolution of loons.

Tuataras - Facts, Classification and Evolution of Tuataras
Tuataras are a group of reptiles that includes only two living species. The articles listed below provide information about the characteristics, classification and evolution of tuataras.

Natural History - Basic Facts and Concepts About Natural History
Natural history forms the basis of our understanding of ecology. By studying the life cycle of an organism, how it fits in with other species, and how it interacts with its environment, scientists can create a holistic picture or 'natural history' of the organism.

Conservation Organizations
Conservation organizations enable people join together and protect wildlife around the globe and counter the effects of habitat destruction, illegal hunting, and pollution.

Mollusks
Mollusks are a group of invertebrates that includes chitons, snails, slugs, limpets, squids, oysters, clams, cuttlefish, octopus and many more. There are about 100,000 species of mollusks alive today. The articles listed below provide information about the characteristics, classification and evolution of mollusks.

Pictures of Animals
Animal and wildlife pictures enable you to familiarize yourself with animals and wildlife you might otherwise see only rarely. Through these animal pictures, animal photos and illustrations, you'll learn about a wide variety of animal groups including amphibians, birds, invertebrates, mammals and reptiles.

A Beginner's Guide to Evolution
The study of evolution provides a foundation for our understanding of the history of life. Evolution provides us with the scientific framework to investigate how species change over time and how various groups of living organisms relate to one another.

Animals of the World
The world's major landmasses, known as continents, each support a unique assortment of animals and wildlife. Here you'll find information about some of the species that inhabit North America, South America, Africa, Asia, Europe, Australia, the polar regions, and the world's oceans.

Evolution - Understanding Evolution and Natural Selection
The study of evolution provides a foundation for our understanding of the history of life. Evolution provides us with the scientific framework to investigate how species change over time and how various groups of living organisms relate to one another.

A Beginner's Guide to Habitats
These habitat types help us to understand the wildlife that inhabits them and better protect both the land and the species that depends on it.

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Facts About Great Horned Owls
Great horned owls are a large species of true owls that inhabits many parts of North and South America.

10 Facts About Marsupials
Learn interesting facts about marsupials and find out about the characteristics make them different from other animal groups, their life cycle and their evolutionary history.

A to Z Animal Profiles List By Scientific Name
An A to Z list of animal profiles available at this site, sorted alphabetically by scientific name.

Appalachian Mountains - The Habitat Encyclopedia
Profile of the Appalachian Mountain Range, an ancient band of mountains that stretches in a southwestern arc from Newfoundland to Alabama.

Precambrian - The Timeline of Biological History
The Precambrian lasted nearly 4,000 million years and began with the formation of the Earth and culminated with the Cambrian Explosion.

A Biography of Charles Darwin
Charles Darwin was born in Shrewsbury, England on February 12, 1809, the fourth child of Robert Waring Darwin and Susannah Wedgwood.

Atlantic Puffin - Fratercula arctica
The Atlantic puffin (Fratercula arctica) is a small palegic seabird belonging to the same family as murres and auklets.

Bobcat - Lynx rufus
Bobcats (Lynx rufus) are small cats that inhabit a range that stretches throughout a large portion of North America, from southern Canada to southern Mexico. Page 2.

Cheetah - Acinonyx jubatus
The cheetah (Acinonyx jubatus) is the world's fastest land animal. Cheetahs can achieve speeds of up to 110km/h but they can only maintain these bursts for short periods of time. Page 3.

Dusky Dolphin - Lagenorhynchus obscurus
The dusky dolphin (Lagenorhynchus obscurus) is a medium sized dolphin, growing to lengths of 5.5 to 7 feet and weights of 150 to 185 pounds. It has a sloping face with no dominant beak nose. It is dark gray (or dark blue-gray) on its back and white on its bell. Page 4.

European Robin - Erithacus rebecula
The European robin (Erithacus rebecula) is a small perching bird that can be found throughout many parts of Europe. Page 5.

Firefish - Pterois volitans
The firefish (Pterois volitans), also known as the lionfish, was first described in 1758 by Dutch naturalist Johan Frederick Gronovius. The firefish is a species of scorpionfish that has exquisite reddish brown, gold and cream yellow bands of markings on its body. It is one of eight species of the genus Pterois. Page 6.

Green Sea Turtle - Chelonia mydas
The green sea turtle (Chelonia mydas) is among the largest marine turtles and is also the most widespread. Page 7.

Hippopotamus - Hippopotamus amphibus
Hippopotamuses (Hippopotamus amphibus) are large, semiaquatic hoofed mammals that live near rivers and lakes in central and southeastern Africa. Page 8.

Indri - Indri indri
Animals & Wildlife. Page 9.

Jumping Spider - Salticidae
Animals & Wildlife. Page 10.

Komodo Dragon - Varanus komodoensis
Animals & Wildlife. Page 11.

Lion - Panthera leo
Animals & Wildlife. Page 12.

Marine Iguana - Amblyrhynchus cristatus
Animals & Wildlife. Page 13.

Nene Goose - Branta sandvicensis
Animals & Wildlife. Page 14.

Ocelot - Leopardus pardalis
Animals & Wildlife. Page 15.

Pronghorn - Antilocapra americana
Pronghorns are deer-like mammals that have light-brown fur on their body, a white belly, a white rump, and black markings on their face and neck. Their head and eyes are large and they have a stout body. Page 16.

Quetzal - Picture of a Quetzal
The quetzal, also known as the resplendent quetzal (Pharomachrus mocinno) is a member of the trogon family of birds. The quetzal lives in southern Mexico, Costa Rica and parts of western Panama. Quetzals have green iridescent feathers on their body and a red breast. Quetzals feed on fruit, insects and small amphibians. Page 17.

Roseate Spoonbill - Picture of a Roseate Spoonbill
The roseate spoonbill (Platalea ajaja) is a unique wading bird that has a long 'spatulate' or 'spoon-shaped' bill that is flattened at the tip into a broad disk shape. Page 18.

Snow Leopard - Picture of a Snow Leopard
The snow leopard (Panthera uncia) is a large species of cat that roams the mountain ranges of central and southern Asia. The snow leopard is well adapted for the cold temperatures of its high-altitude habitat. Page 19.

Tufted Titmouse - Picture of a Tufted Titmouse
The Tufted Titmouse (Baeolophus bicolor) is a small, gray-plumed songbird, easily recognized for the crest of gray feathers atop its head, its big black eyes, black forehead, and its rust-colored flanks. Page 20.

Uinta Ground Squirrel - Picture of a Uinta Ground Squirrel
The Uinta ground squirrel (Urocitellus armatus) is a mammal native to the northern Rocky Mountains and its surrounding foothills. Its range stretches through Idaho, Montana, Wyoming and Utah. The squirrels inhabit grasslands, fields, and dry meadows and feed on seeds, greens, insects and small animals. Page 21.

Viceroy - Picture of a Viceroy
The Viceroy Butterfly (Limenitis archippus) is an orange, black and white butterfly that resembles the monarch butterfly (Danaus plexippus). The viceroy is a Mullerian mimic of the monarch which means that both species are harmful to predators. Page 22.

Whale Shark - Picture of a Whale Shark
Despite its massive size and apparent visibility, the whale shark (Rhincodon typus) giant fish remains in many respects a big mystery. Page 23.

Xenarthra - Picture of a Xenarthra
Armadillos, sloths, and anteaters are all Xenarthra. Xenarthrans comprise an ancient group of placental mammals that once roamed across Gondwanaland before the continents of the Southern Hemisphere separated into their present day configuration. Page 24.

Yellow Warbler - Picture of a Yellow Warbler
The yellow warbler (Dendroica petechia) is a native to most parts of North America, though it is not pressent in the south or along the Gulf coast. Yellow warblers are bright yellow over their entire body, with slightly darker upperparts and chestnut streaks on their belly. Page 25.

Zebra Finch - Picture of a Zebra Finch
Zebra finches (Taeniopygia guttata) are ground-dwelling finches native to Central Australia. They inhabit grasslands, forests, and open habitats with scattered vegetation. Adult zebra finches have a bright orange bill and orange legs. Page 26.

Animal Pictures A to Z
This image gallery contains an A to Z collection of animal pictures, from Atlantic Puffins to Zebra Finches.

Animal Pictures A to Z
This image gallery contains an A to Z collection of animal pictures, from Atlantic Puffins to Zebra Finches.

Animal Pictures A to Z
This image gallery contains an A to Z collection of animal pictures, from Atlantic Puffins to Zebra Finches.

Cartilaginous Fish - Chondrichthyes - Profile
Cartilaginous fishes are a group of fishes that includes the largest and most formidable marine predators alive today: the sharks.

The Wildlife of Zion National Park
Zion National Park is a dramatic vertical landscape, with an elevation range of about 3,800 feet to 8,800 feet.

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Common Seal - Phoca vitulina - The Animal Encyclopedia
The common seal, also known as the harbor seal, is an agile carnivore with a streamlined body and flipper-like limbs that enable them to swim with great skill.

How Do Tides and Waves Work?
Waves give rhythm to the ocean. They transport energy over vast distances. Where they make landfall, waves help to sculpt a unique and dynamic mosaic of coastal habitats.

Newts and Salamanders - Caudata - The Animal Encyclopedia
Newts and salamanders are slender-bodied amphibians, with a long tail and usually two pairs of limbs.

Amphibians - Lissamphibia - The Animal Encyclopedia
Amphibians are the most ancient of all tetrapod lineages and the first to have climbed onto dry land some 370 million years ago.

Lemurs, Galagos, and Pottos – Strepsirhini
Prosimians are an informal group of primates that include lemurs, galagos, pottos, tarsiers, and lorises.

Plankton - The Microscopic Multitudes of the Oceans
Plankton are microscopic organisms that drift on the oceans' currents. They include organisms such as diatoms, dinoflagillates, krill, and copepods as well as the microscopic larva of crustaceans, sea urchins, and fish.

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Crustacean Pictures
In this image gallery, we'll introduce you to the crustaceans--through pictures of mantis shrimp, barnacles, shield shrimp, ghost crabs, and more.

Top 10 Wildlife Conservation Organizations
A list of my top ten favorite conservation organizations that work to protect animals and wildlife around the world.

Grebes: The Skilled Freshwater Divers
Grebes are group of medium-sized freshwater diving birds that inhabit wetlands such as lakes, ponds and slow-flowing rivers.

Painted Reed Frog - Hyperolius marmoratus - Amphibian Pictures
The painted reed frog is a native to the eastern and southern parts of Africa where it inhabits temperate forests, savannas, and shrublands. Page 2.

Fire Salamander - Salamandra salamandra - Amphibian Pictures
The fire salamander is black with yellow spots or yellow stripes that inhabits the deciduous forests of southern and central Europe. Page 5.

Red-Eyed Tree Frog - Agalychnis callidryas - Amphibian Pictures
The red-eyed tree frog belongs to a diverse group of frogs known as the new world tree frogs. Page 4.

Animals and Their Environment
Discover the remarkable ways that animals are shaped by the natural environment in which they live.

Cichlids - Cichlidae
Cichlids are a group of ray-finned fishes that inhabit lakes and slow rivers in East Africa, Asia, Sri Lanka, South America and the Middle East.

Polar Bear - Ursus maritimus
Polar bears are the second largest species of bears, smaller than only the brown bear. Their size helps them conserve heat.

A Glossary of Ecology and Population Biology Terms
This glossary provides definitions for terms commonly encountered by students studying population biology and ecology.

Insects - Insecta - The Animal Encyclopedia
Profile of insects, a highly successful group of animals that accounts for more species of animals than any other class of animals.

Wildlife of the Great Lakes
The Great Lakes is a chain of five large, freshwater lakes that are located in central North America astride the Canada-Unisted States border.

How Animal Populations Interact
It gets complicated when species share the same habitat. This guide will help you to untangle the many interactions that arise when species mingle.

The Life Cycle of a Jellyfish
The most recognized image of a jellyfish is that of the adult jellyfish, with its bell-shaped body and long tentacles.

A Glossary of Ecology and Population Biology Terms
This glossary provides definitions for terms commonly encountered by students studying population biology and ecology.

A Glossary of Ecology and Population Biology Terms
This glossary provides definitions for terms commonly encountered by students studying population biology and ecology.

Birds - Aves - The Animal Encyclopedia
From feathers to furculas, birds are some of the most distinct vertebrates alive today, exhibiting a remarkable suite of adaptations for their aerial lifestyle.

A Glossary of Bird Biology Terms
This glossary defines terms that you might encounter when studying bird biology, also known as ornithology.

A Glossary of Zoology Terms
This glossary defines terms that you might encounter when studying zoology.

A Glossary of Zoology Terms
This glossary defines terms that you might encounter when studying zoology.

Posion Dart Frog Picture - Picture of a Posion Dart Frog
This poison frog is potentially new to science. The frog was discovered in the hills of Tacarcuna, a mountainous area on the border of Colombia with Panama. Page 14.

Posion Dart Frog Picture - Picture of a Posion Dart Frog
This poison frog is potentially new to science. The frog was discovered in the hills of Tacarcuna, a mountainous area on the border of Colombia with Panama. Page 13.

Harlequin Frog Picture - Picture of a Harlequin Frog
A harlequin frog potentially new to science discovered in a Rapid Assessment Program survey conducted in Colombia during which 10 species of amphibians believed to be new to science were found. Page 12.

Salamander Picture - Picture of a Salamander
This salamander which is potentially new to science was discovered in Colombia. Page 11.

Glass Frog Picture - Picture of a Glass Frog
The glass frog of the Cochranella genus is among the discoveries. Page 10.

Poison Dart Frog Picture - Picture of a Poison Dart Frog
Ten new amphibian species have been discovered in Colombia's Tacarcuna region, a mountainous region that lies near the border of Panama. Page 9.

Poison Dart Frog Picture - Picture of a Poison Dart Frog
This poison frog of the Colostethus genus is among the discoveries. Page 8.

Glass Frog Picture - Picture of a Glass Frog
Three glass frogs of the Nymphargus, Cochranella and Centrolene genera were discovered in the hills of Tacarcuna, a mountainous area in Colombia. Page 7.

Glass Frog Picture - Picture of a Glass Frog
Three glass frogs of the Nymphargus, Cochranella and Centrolene genera are among the 60 species of amphibians identified by scientists during a three-week Rapid Assessment Program expedition in Colombia. Page 6.

Glass Frog Picture - Picture of a Glass Frog
Three glass frogs of the Nymphargus, Cochranella and Centrolene genera are among the 60 species of amphibians identified by scientists during a three-week Rapid Assessment Program expedition in Colombia. Page 5.

Amphibians of Columbia Pictures - Pictures of the Amphibians of Columbia
Ten new amphibian species have been discovered in Colombia's Tacarcuna region, a mountainous region that lies near the border of Panama. The discovery was made by a team of herpetologists from Conservation International, Colombia and ornithologists from the Ecotrpico Foundation.

Amphibians of Columbia Pictures - Pictures of the Amphibians of Columbia
Ten new amphibian species have been discovered in Colombia's Tacarcuna region, a mountainous region that lies near the border of Panama. The discovery was made by a team of herpetologists from Conservation International, Colombia and ornithologists from the Ecotrpico Foundation.

Rain Frog Picture - Picture of a Rain Frog
One of two new species of rain frogs discovered in Colombia. Page 4.

Rain Frog Picture - Picture of a Rain Frog
One of two new species of rain frogs discovered in Colombia. Page 3.

Rain Frog Picture - Picture of a Rain Frog
One of two new species of rain frogs discovered in Colombia. Page 2.

Rain Frog Picture - Picture of a Rain Frog
One of two new species of rain frogs discovered in Colombia.

Even-Toed Hoofed Mammals - Artiodactyla
Even-toed hoofed mammals include cattle, goats, deer, sheep, antelope, camels, llamas, pigs, hippopotamuses, and many others.

Crustaceans - Crustacea - The Animal Encyclopedia
Crustaceans are a group of arthropods that includes lobsters, crabs, and many other groups. There are about 42,000 species of crustaceans alive today.

Vertebrates - Vertebrata - The Animal Encyclopedia
Discover how the innovation of a supportive backbone enabled the vertebrates to stand tall and go beyond their chordate ancestors.

Sea Cucumbers - Holothuroidea - The Animal Encyclopedia
Sea cucumbers are a group of echinoderms that have an internal skeleton or endoskeleton that consists of tiny ossicles, small particles of calcium carbonate embedded in the body wall.

Invertebrates - Animals and Wildlife - About.com
Scientists have identified nearly one million living species of invertebrates, but this is only a small fraction of the invertebrates alive today.

Lampreys - Hyperoartia - The Animal Encyclopedia
Lampreys are a group of vertebrates that are jawless, have no scales, and have a round mouth that contains rows of horny teeth.

Axolotl - Ambystoma mexicanum - Amphibian Pictures
The axolotl is a salamander native to Lake Xochimilco in central Mexico. Axolotl larvae do not lose their gills and they remain aquatic as adults.

Banded Bullfrog - Kaloula pulchra - Amphibian Pictures
The banded bullfrog is a frog native to Southeast Asia. It inhabits forests and rice fields. When threatened, it can

California Newt - Taricha torosa - Amphibian Pictures
The California newt inhabits coastal regions of California as well as the Sierra Nevadas. This newt produces tetrodotoxin, a potent toxin also produced by pufferfish and harlequin frogs. There is no known antidote for tetrodotoxin. Page 3.

Golden Toad - Bufo periglenes - Amphibian Pictures
The golden toad lived in the montane cloud forests outside the city of Monteverde, Costa Rica. The species is thought to be extinct as it has not been seen since 1989. Page 6.

Green Tree Frog - Litoria caerulea - Amphibian Pictures
The green tree frog is a large frog that is native to Australia and New Guinea. Its color varies depending on the temperature of the surrounding air and ranges from brown to green. Page 9.

Leopard Frog Picture - Rana - Amphibian Pictures
Leopard frogs belong to the genus Rana, a group of frogs that inhabit tropical and subtropical regions of North America and Mexico. Leopard frogs are green with distinct black spots. Page 7.

Mexican Burrowing Cacilian - Dermophis mexicanus - Amphibian Pictures
The Mexican burrowing caecilian is a limbless amphibian that inhabits a range from southern Mexico to northwest Colombia. Page 11.

Smooth Newt - Lissotriton vulgaris - Amphibian Pictures
The smooth newt is a species of newt common throughout many parts of Europe. Page 10.

Tyler's Tree Frog - Litoria tyleri - Amphibian Pictures
Tyler's tree frog, also known as the southern laughing tree frog is a tree frog that lives in coastal regions of eastern Australia. Page 12.

Amphibian Pictures
Pictures of amphibians including red-eyed tree frogs, axolotl, green tree frogs, California newts, leopard frogs, and more.

Fishes - The Scaly Rulers of the Seas
Discover the secrets of the fishes, a diverse and ancient group of animals whose earliest ancestors appeared some 510 million years ago.

Ray-Finned Fishes: The Most Diverse Vertebrate Group
Ray-finned fishes are a highly diverse group of fishes that includes about 25,000 species. They are named for their fins, which contain bony rays or spines.

Pinnipeds: Clumsy on Land, Graceful in Water
Pinnipeds are a group of marine mammals that includes true seals, eared seals and the walrus. Pinnipeds are clumsy on land but agile in the water.

Walrus: The Tusk-Tastic Pinniped
Walrus are large pinnepeds that are easily recognized by their two long tusks and their large, bulky body.

Giraffe: The Tallest Land Animal
Discover remarkable facts about the giraffe, the world's tallest living land animal. Find out more about the various and numerous giraffe subspecies.

True Seals: Monk Seals, Bearded Seals, and More
True seals (Phocidae) are large marine mammals that have a rotund, fusiform shaped body with small fore flippers and larger rear flippers.

Eastern Gorillas - The World's Largest Primate Species
Eastern gorillas are an endangered species of great ape that inhabits lowland and montane cloud forests in the eastern parts of equatorial Africa.

Giraffes Classification
Animals & Wildlife. Page 2.

West African Giraffe
West African giraffe is a subspecies of giraffe that is native to West Africa and is now restricted to southwest Niger. Page 12.

Giraffe Habitat and Range
Animals & Wildlife.

South African Giraffe
The South African giraffe is a subspecies of giraffe that is native to South Africa. Page 11.

Reticulate Giraffe
The reticulated giraffe is a subspecies of giraffe that is native to East Africa. Page 8.

Nubian Giraffe
The Nubian giraffe is a subspecies of giraffe that is native to North Africa including Ethiopia and Sudan. Page 7.

Rothschild's giraffe
The Rothschild's giraffe is a subspecies of giraffe that is native to East Africa. Page 10.

Kordofan giraffe
The Kordofan giraffes is a subspecies of girafe that inhabits Central Africa. Page 5.

Rhodesian Giraffe
The Rhodesian giraffe is a subspecies of giraffe that inhabits the South Luangwa Valley in Zambia. Page 9.

Scientists Declare New Elephant Species
There's a new elephant species roaming around Africa and the surprising thing is that it's been there all along.

Evolution of Giraffes
Giraffes evolved from tall, antelope-like creatures that lived between 30 and 50 million years ago. Page 3.

Angolan Giraffe
The Angolan giraffe, despite its name, is no longer present in Angola. There are fewer than 15,000 individuals left in the wild. Page 4.

Giraffe Pictures
Pictures of giraffes, the world's tallest living land animal, including subspecies such as the Rothschild's giraffe, Masai giraffe, and others.

Masai Giraffe
Masai giraffes are a subspecies of giraffe that is native to Kenya and Tanzania. Page 6.

Leaf-Cutter Ant Queen Picture - Picture of a Leaf-Cutter Ant Queen
In this image, a leaf-cutter ant queen looks after her fungus garden. Leaf-cutter ants grow a fungus which provides food for their entire colony. The queen can live as long as 15 years and produce enough eggs to build a colony 2-5 million workers strong.

Leaf-Cutter Ant Worker Picture - Picture of a Leaf-Cutter Ant Worker
A leaf-cutter ant worker looks after her fungus garden. These ants grow a crop of fungus that feeds their colony. Page 3.

Leaf-Cutter Ant Worker Picture - Picture of a Leaf-Cutter Ant Worker
A leaf-cutter ant worker looks after her fungus garden. These ants grow a crop of fungus that feeds their colony. The ants use leaves harvested from nearby plants. The worker is covered in white bacteria that produce antibiotics to protect the fungus. Page 2.

Leaf-Cutter Ant Picture - Picture of Leaf-Cutter Ants
Leaf-cutter ants haul fresh-cut leaves back to their colony. The ants do not feed on the leaves. Instead, they compost the leaves and grow a fungus that feeds the colony. Page 5.

Leaf-Cutter Ant Picture - Picture of Leaf-Cutter Ants
Leaf-cutter ants haul fresh-cut leaves back to their colony. The ants do not feed on the leaves. Instead, they compost the leaves and grow a fungus that feeds the colony. Page 4.

Leaf-Cutter Ant Pictures
Leaf-cutter ants are crafty cultivators. They tend vast gardens of fungus that they harvest to feed their minions.

Forest Biome - The Habitat Encyclopedia
Explore fascinating facts about forests, the largest and the most ecologically complex of all the terrestrial biomes.

Arctic Fox - Alopex lagopus
The Arctic fox (Alopex lagopus) is a species of fox that is native to the Arctic tundra.

Hares and Rabbits - Leporidae - The Animal Encyclopedia
Hares and rabbits are a group of lagomorphs that includes species such as the snowshoe hare, European hare and eastern cottontail.

Sponges - Porifera - The Animal Encyclopedia
Sponges are a group of simple aquatic invertebrates that include glass sponges, demisponges, and calcareous sponges.

Starfish - Asteroidea
Famous for having five arms, starfish are fascinating invertebrates that move across the seafloor using an intricate hydraulic system and tiny tube feet.

Cats - Felidae
Meet the cats, a remarkable group of carnivores that include some of the world's most nimble, efficient, and formidable predators.

From Forest Floor to Canopy: The Layers of a Forest
Mature forests often have several distinct layers including the forest floor, herb layer, shrub layer, understory, canopy, and emergents.

Snakes - Serpentes
Snakes are a group of squamates that have no limbs, no eyelids, no external ears, and most species have only one functional lung.

Bivalves - Bivalvia
Bivalves are a group of molluscs that include clams, scallops, oysters, mussels, borers, trough shells and many others.

European Robin - Erithacus rebecula
Popular for their congenial manner, rusty-red breast and lovely song, European robins are welcome visitors to many gardens, hedgerows and green spaces throughout Europe.

Rocky Mountains
The Rocky Mountains stretch through western North America from Alaska to New Mexico, forming the middle section of the Western Cordillera.

Ostrich - Struthio camelus
The ostrich is a record-breaking bird. It's the tallest and heaviest species of all birds and can run at speeds of up to 45 mph.

What Are Endangered Species?
Scientists and conservationists who study the animal species that face a high risk of extinction refer to such species as endangered species.

Lizards - Lacertilia - The Animal Encyclopedia
Lizards are a diverse group of squamates that includes iguanas, chameleons, geckos, night lizards, blind lizards, beaded lizards, and many others.

Carnivores - Carnivora
Swiftness of speed, super eyesight, sharp teeth, and strong claws--carnivores have a remarkable suite of adaptations that make them keen hunters.

Mustelids - Mustelidae - The Animal Encyclopedia
Meet the mighty mustelids, a diverse group of carnivores that includes skunks, martens, badgers, otters, and minks.

Canids - Canidae
Canids are a group of carnivores that includes dogs, wolves, foxes, and coyotes, jackals. Canids are good runners and pursue prey over long distances.

Animals - Metazoa - The Animal Encyclopedia
Explore the vast diversity of animal life, from arrow worms to waterbears, and discover how these remarkable organisms differ from all other living things.

Chordates - Chordata - The Animal Encyclopedia
From vertebrates to tunicates to lancelets, chordates are a diverse group of animals notable for a rather innovative structure called a notochord.

Mammals - Mammalia - The Animal Encyclopedia
Mammals are a group of tetrapods that includes bats, carnivores, cetaceans, elephants, hoofed mammals, primates, monotremes, marsupials, and rodents.

Amniotes - Amniota - The Animal Encyclopedia
Find out why it's all about the egg when it comes to amniotes, a unique group of four-legged vertebrates with some clever adaptations to life on land.

Animals & Wildlife
Animals & Wildlife. Page 2.

Animals & Wildlife
Animals & Wildlife. Page 4.

Animals & Wildlife
Animals & Wildlife. Page 6.

Animals & Wildlife
Animals & Wildlife. Page 5.

Animals & Wildlife
Animals & Wildlife.

Animals & Wildlife
Animals & Wildlife. Page 3.

Hares and Pikas - Lagomorpha - The Animal Encyclopedia
Hares, pikas and rabbits are small terrestrial mammals that include cottontails, jackrabbits, pikas, hares and rabbits.

Harp Seal
Harp Seal. Animals & Wildlife.

Rock Ptarmigan
Rock Ptarmigan. Animals & Wildlife.

Muskox
Muskox. Animals & Wildlife.

Arctic Hare
Arctic Hare. Animals & Wildlife.

Arctic tern - Sterna paradisaea
The Arctic tern is a species of tern known for its long migration.

Polar Bear
Polar Bear. Animals & Wildlife.

Walrus
Walrus. Animals & Wildlife.

The Wild Arctic
The Arctic is a region that encircles the north pole and extends southward over the Arctic Ocean, Alaska, Canada, Greenland, Iceland, Scandinavia, and Russia.

Arctic fox - Alopex lagopus
The arctic fox is a small species of fox that inhabits the Arctic

Komodo Dragon - Varanus komodoensis
Komodo dragons are a species of large monitor lizard that inhabits the Indonesian islands of Komodo, Flores, Rinca, and Padar.

Caracal - Caracal caracal - The Animal Encyclopedia
Caracals are a unique species of cat that inhabit norther Africa, the Arbaian peninsula, and southwestern Asia.

The 7 Basic Carnivore Groups
An introduction to the seven basic groups of carnivores including bears, canids, cats, civets, hyenas and aardwolf, mustelids, and raccoons.

American Black Bear - Ursus americanus
The American black bear is a large carnivore that inhabits the forests, swamps, tundra throughout the more northerly reaches of North America.

Asian Black Bear - Ursus thibetanus
The Asian black bear is a medium-sized species of bear that inhabit parts of southeast Asia and the Russian Far East.

Eurasian Lynx - Lynx lynx - The Animal Encyclopedia
The Eurasian lynx is a medium-sized cat that inhabits the forests and mountains of Europe and Siberia.

Clouded Leopard - Neofelis nebulosa
Clouded leopards are medium-sized cats that inhabit the foothills of the Himalaya throughout Southeast Asia.

The Wildlife of North America
North America is a region of vast, diverse landscapes that extend from the Arctic in the north to the narrow land bridge of Central America in the south.

African Elephant - Loxodonta africana
The African elephant is the largest living land mammal and one three species of elephants alive today.

Jurassic Period - The Age of Reptiles
Unlock the mysteries of the Jurassic, a unique time in history that saw the rise, proliferation, and sudden disappearance of the dinosaurs.

Sea Cliffs - Habitats of High, Rocky Coastlines
Sea cliffs are high, rocky coasts that plunge down to the sea's edge. These harsh environments are subject to the battering of waves, wind, and salt-laden sea spray.

Crabs, Lobsters, and Relatives - Malacostraca
Profile of crabs, lobsters, and their relatives, a group of crustaceans that includes crabs, lobsters, shrimp, mantis shrimp, prawns, krill, spider crabs, woodlice and many others.

European Common Toad - Bufo bufo - The Animal Encyclopedia
Despite their size and bravado, European common toads are gentle creatures that have few defenses apart from standing their ground and looking as big and as bold as possible.

Armadillos, Sloths, and Anteaters - Xenarthra
Armadillos, sloths, and anteaters are notable for the unique joints in their backbone that give them strength and support to dig and burrow.

Old World Monkeys - Cercopithecidae
Old World monkeys are a group of primates native to Old World regions of the world including Africa, India and Southeast Asia.

Sharks, Skates, and Rays - Elasmobranchii
Sharks, rays, and skates are a group of cartilaginous fishes that includes about 800 species, of which over half are skates and rays.

European Badger - Meles meles - The Animal Encyclopedia
The European badger is a carnivore that has a short, fat body and short, sturdy legs well suited for digging.

A to Z Animal Profiles List By Common Name
An A to Z list of animal profiles available in The Animal Encyclopedia, sorted alphabetically by common name.

Asian Elephant - Elephas Maximas - The Animal Encyclopedia
The Asian elephant is a species of elephant that has small ears, a long trunk and thick, gray skin.

Golden Eagle - Aquila chrysaetos
Golden eagles are a large diurnal bird of prey whose range extends across the Holarctic region.

Odd-Toed Hoofed Mammals - Perissodactyla
Odd-toed hoofed mammal are a group of mammals that includes horses, rhinoceroses and tapirs.

Sea Urchins and Sand Dollars - Echinoidea
Sea urchins and sand dollars are a group of echinoderms with a spiny, globe- or disk-shaped body that occur in all the world's oceans.

Andes - The World's Longest Mountain Chain
The Andes form a chain of mountains that stretch 4,300 miles along the west coast of South America.

Conservation Organizations That Protect Animals
If you are interested in getting involved in wildlife conservation, be sure to consider this list of organizations.

Frogs and Toads - Anura - The Animal Encyclopedia
No tail? No problem, if you're an amphibian. What frogs and toads lack in a tail they make up for in croaks and jumping prowess.

Facts About Frogs - The Animal Encyclopedia
Explore the fascinating world of frogs in this fact-packed guide to the most celebrated and farthest-hopping of all amphibians.

Hummingbirds and Swifts - Apodiformes - The Animal Encyclopedia
Hummingbirds and swifts are small birds that have numerous adaptations for specialized flight.

Gorillas - Gorilla - The Animal Encyclopedia
Gorillas are a group of great apes that includes two species, the eastern gorilla and the western gorilla.

How Many Animal Species Inhabit Our Planet?
Find out how scientists estimate and count the many millions of animal species that live on our planet today.

Things You Can Do To Protect Wildlife
It's easy to feel overwhelmed in the face of species loss and habitat destruction. Here is a list of things you can do to help protect wildlife.

American Beaver - Castor canadensis - The Animal Encyclopedia
The American beaver is one of two living species of beavers and the world's second largest rodent, only the capybara of South America is larger.

Jellyfish - Scyphozoa - The Animal Encyclopedia
Jellyfish are a group of carnivorous cnidarians with a bell-shaped body and tentacles. Jellyfish are delicate, soft-bodied animals.

Understanding the Threats to Animals and Wildlife
Living organisms face a constant barrage of external stresses or threats that challenge their ability to survive and reproduce.

The Sierra Club: Protecting Ecological Communities and More
The Sierra Club is a grassroots organization that works to protect ecological communities and to create an enduring legacy for America's wildernesses.

Chelicerates - Chelicerata - The Animal Encyclopedia
Chelicerates are a group of arthropods that includes harvestmen, scorpions, mites, spiders, horseshoe crabs, sea spiders, and ticks.

Arthropods - Arthropoda - The Animal Encyclopedia
Arthropods are a group of invertebrates that includes insects, spiders, crustaceans, scorpions, centipedes, and many others.

Neil Shubin
Neil Shubin, PhD (born on December 22, 1960) is a paleontologist, evolutionary biologist, and science writer.

New World Monkeys - Platyrrhini - The Animal Encyclopedia
New World Monkeys are a group of primates endemic to Central and South America. New world monkeys include marmosets, tamarins, capuchins, squirrel monkeys, and many others.

Tiger - Panthera tigris - The Animal Encyclopedia
Tigers are the largest and most powerful of all cats. Tigers have a distinct orange coat, black stripes and white markings.

What Do Turtles Eat?
From leaves and grasses to fish and crustaceans, the diet of today's turtles is really quite varied.

Parrots - Psittaciformes - The Animal Encyclopedia
Parrots are a group of birds that are known for their colorful plummage and the large, noisy flocks they form.

Echinoderms - Echinodermata - The Animal Encyclopedia
Echinoderms are a group of marine invertebrates that includes star fish, sea lilies, feather stars, brittle stars, sea cucumbers and sea urchins.

Snow Leopard - Panthera uncia - The Animal Encyclopedia
Meet the snow leopard, an elusive cat that inhabits the cold, high mountain ranges of central and southern Asia.

Rodents - Rodentia - The Animal Encyclopedia
Profile of rodents, a group of mammals that includes squirrels, dormice, mice, rats, gerbils, beavers, gophers, kangaroo rats, pocket mice, and many others.

The Basics of Chimp Technology
Chimpanzees are second only to humans in the variety of tools they use and the innovative ways they employ those tools.

Wildlife of the Everglades
Profile of the Everglades, a subtropical wetland ecosystem that stretches southward from central Florida all the way to the Florida Bay.

What is Desertification?
Desertification is the process by which desert-like conditions develop in regions that have experienced human disturbance such as deforestation, overgrazing, or poorly managed agriculture.

Common Dolphin - Delphinus delphis - The Animal Encyclopedia
Common dolphins are colorful with a characteristic hourglass-shaped pattern on their sides.

Atlantic White-Sided Dolphin - Lagenorhynchus acutus - The Animal Encyclopedia
Learn interesting facts about Atlantic white-sided dolphins and find out about the characteristics make them different from other dolphin species, their life cycle and their evolutionary history.

Rodriguez Flying Fox - Pteropus rodricensis - The Animal Encyclopedia
The Rodriguez flying fox is a critically endangered flying fox that feeds on fruit so is also referred to as a fruit bat.

Aardvark - Orycteropus afer - The Animal Encyclopedia
The aardvark is the sole surviing species in its group. Aardvarks are medium-sized mammals with a bulky body and arched back.

Neandertal - Homo neanderthalensis - The Animal Encyclopedia
Neandertals (Homo neanderthalensis) are an extinct member of the Homo genus. Neandertal are thought to have evolved in southern Europe about 400,000 years ago.

Meerkat - Suricata suricatta - The Animal Encyclopedia
Meerkats are highly-social mammals that inhabit open semi-deserts and scrublands in southern Africa.

An Illustrated Guide to Cats
Cats are a group of mammals that include lions, tigers, ocelots, jaguars, caracals, leopards, pumas, lynxes, domestic cats, and many other groups.

The Cats of Asia: Snow Leopard, Clouded Leopard, Tiger
Snow leopards live in mountainous habitat at elevations of between 2000 and 6000 meters. Their range extends from northwestern China to Tibet and the Himalayas.

Cats: Skilled Hunters
Cats are superb hunters. Some species of cats can take down prey that is much larger than themselves, demonstrating their well-honed skills as predators.

Adaptations of Cats
Some important adaptations of cats include retractable claws, acute eyesight, and agility.

Classification of Cats
Classification of Cats. Animals & Wildlife.

The Small Cats: Cheetahs, Lynxes, Caracal and Other Small Cats
The Subfamily Felinae, or the small cats, are a diverse group of carnivores.

The Panthers: Lions, Tigers, Leopards, and Jaguars
The Subfamily Pantherinae, or the large cats, include the most powerful and well-recognized cats on Earth.

Lions and Tigers - Lion and Tiger Subspecies
There are numerous lion subspecies and there is disagreement among experts as to which subspecies are recognized.

Cats - North and South American Cats
Pumas, also known as mountain lions, catamonts, panthers or cougars, are a large cat whose former range extended from coast to coast across North America. By 1960, they were declared extinct in most midwestern and eastern ranges.

The Cats of Africa: Caracal, Serval, Cheetah, Leopards, and Lions
The cats of Africa include the caracal, serval, cheetah, lion, and leopard.

Jaguar - Panthera onca - The Animal Encyclopedia
Jaguars, also called panthers, are among the world's largest species of cats, only lions and tigers are larger.

Lion - Panthera leo - The Animal Encyclopedia
The lion is a species of large cat that has a buff colored coat, white underparts, and a long tail that ends in a black tuft of fur.

Coastal Sand Dunes
Sand dunes are mounds of sand that line a coast that have been sculpted by winds and waves.

What is the Clean Air Act?
Explore the history of the Clean Air Act and find out how it goes beyond previous pollution legislation to ensure we have clean, breathable air.

Altitudinal Vegetation Zone
Vegetation on mountains varies with altitude in response to changes in local environmental conditions.

What Is the Intertidal Zone?
The intertidal zone or littoral zone is the area of the sea floor that lies between the high and low tide marks, bridging the gap between land and sea.

What Is Permafrost?
Permafrost is any soil or rock that remains frozen throughout the year. For a soil to be considered permafrost, it must be frozen for at least two consecutive years or longer.

Temperate Forests
Temperate forests evolved 65 million years ago when global temperatures dropped and, in areas further from the equator, cooler climates emerged.

Krakatau: The Island That Exploded
On the morning of August 27, 1883, Krakatau Island was violently re-sculpted. What followed was a dramatic demonstration of wildlife resilience.

Eastern Deciduous Forests
Deciduous forests once stretched from New England to Florida and from the Atlantic Coast to the Mississippi River.

Black-Footed Albatross - Phoebastria nigripes - The Animal Encyclopedia
Black-footed albatrosses are a species of North Pacific albatross notable for its predominantly dark plumage.

Group 2: The Fishes
Fishes were some of the the first vertebrates to evolve from invertebrate ancestors.

The 6 Basic Animal Groups
Unlock the basics behind how scientists classify animals in this beginner's guide to the six basic animal groups.

Group 1: The Invertebrates
Invertebrates were the first animals to evolve, and they did so from single-celled microorganisms.

Group 3: The Amphibians
Amphibians were the first vertebrates to transition from living in water to living on dry land (or at least moist land).

Group 4: The Reptiles
An introduction to the six basic groups of animals including amphibians, birds, fishes, invertebrates, mammals, and reptiles.

Group 5: The Mammals
An introduction to the six basic groups of animals including amphibians, birds, fishes, invertebrates, mammals, and reptiles.

Group 6: The Birds
An introduction to the six basic groups of animals including amphibians, birds, fishes, invertebrates, mammals, and reptiles.

10 Facts About Corals
Learn about corals and find out about their diversity, evolutionary history and the characteristics make them different from other invertebrate groups.

American Bison - Bison bison - The Animal Encyclopedia
American bison are among the largest members of the Bovidae, the group of mammals that also includes domestic cattle, sheep, and goats

American Moose - Alces americanus - The Animal Encyclopedia
The American moose is the largest member of the deer family. Moose have a large, heavy body and long legs.

Western Gorilla - Gorilla gorilla - The Animal Encyclopedia
Meet the charismatic western gorilla, a critically endangered species of gorilla that inhabits a small range in western equatorial Africa.

Elephants - Proboscidea - The Animal Encyclopedia
Elephants are a group of mammals that are noted for their large size, massive skull, and long muscular trunk.

Why Do Fireflies Glow?
The green-yellow glow that fireflies produce is a familiar sight on warm summer evenings, but do you know why these intriguing insects shine so bright?

Adelie Penguin - Pygoscelis adeliae - The Animal Encyclopedia
The Adelie penguin has a black back and a white belly and white rings around their eyes. Their wings are black on top and white underneath.

Black Rhinoceros - Diceros bicornis - The Animal Encyclopedia
Learn about the black rhinoceros, a critically endangered species of rhinoceros that has poor eyesight, acute hearing, and a keen sense of smell.

The Mysterious Barbary Macaque
High in the scrublands and fir forests of the Atlas Mountains roams a unique primate. The Barbary Macaque is Africa's only macaque species

The Bonobo's Uncertain Future - Animals - About.com
Bonobos face a precarious future unless they receive better protection throughout their current range, a new study reveals.

Bonobos - Pan paniscus - The Animal Encyclopedia
Bonobos are one of two species of chimpanzees that together form a group of apes that are the closest living relatives to humans.

Common Chimpanzee - Pan troglodytes - The Animal Encyclopedia
Common chimpanzees are an endangered species of great ape that inhabits the forests and savannas of Central and West Africa.

Bornean Orangutan - Pongo pygmaeus - The Animal Encyclopedia
Bornean orangutans are the ultimate tree-dwelling primates. These remarkable apes live in the forest canopy and rarely descend to the ground.

Aye-Aye - Daubentonia madagascariensis - The Animal Encyclopedia
Meet the aye-aye, a creature that Douglas Adams described as looking like a large cat with a bat's ears and a middle finger like a long dead twig.

Moonlight and Mild Temps Inspire Owl Monkeys
Azara's owl monkeys move to the rhythm of the moon. On nights when a full moon floods the evening sky with light, Azara's owl monkeys can't sit still.

Primates - Primates - The Animal Encyclopedia
Primates are a remarkable group of mammals that includes humans and other great apes. Primates are notable for their dexterity and complex social units.

What Are Prokaryotes and Eukaryotes?
All living organisms can be sorted into one of two groups depending on the fundamental structure of their cells - prokaryotes or eukaryotes.

Understanding Communities and Ecosystems
Decode some of the jargon that is used in the science of ecology to describe natural communities, populations, and ecosystems.

The Working Zoologist
Discover some of the intriguing ways you can employ your love of animals and wildlife and find out more about careers such as wildlife rehabilitation, zoo keeping, and more.

Scarlet Ibis - Eudocimus ruber - The Animal Encyclopedia
Meet the scarlet ibis, a brightly colored bird from South America that boasts some of the brightest, most intensely pigmented plumage of any living bird.

Roseate Spoonbill - Platalea ajaja - The Animal Encyclopedia
The roseate spoonbill is a unique wading bird that has a long 'spatulate' or 'spoon-shaped' bill that is flattened at the tip into a broad disk shape.

Herons, Storks, and Relatives - Ciconiiformes - The Animal Encyclopedia
Herons and their relatives are wading birds that have long necks, large bodies, long legs, and strong, specialized bills.

Rhinoceros Iguana - Cyclura cornuta - The Animal Encyclopedia
Rhinoceros iguanas are large iguanas with several enlarged, horn-like scales on its snout that resemble the horns of a rhinoceros.

Flight Feathers - The Flight Feathers of Birds
Feathers are a unique characteristic of birds and are a key requirement for flight. Feathers are arranged in a precise pattern over the wing.

Greater Flamingo - Phoenicopterus ruber - The Animal Encyclopedia
The greater flamingo is a lanky wading bird known for its distinct pink and crimson plumage, pink legs, and stout, down-turned bill.

Practical Tips for Watching Wildlife
There are a few simple steps you can take that can help you to blend in to the surroundings and thus increase your chances of observing animals at closer proximity.

Carboniferous Period - The History of Life on Earth
The Carboniferous Period is named after the rich coal deposits that are present in rock layers from this time period.

What Is Baleen?
Baleen is a fibrous structure in the mouths of some whales that enables the whale to filter food from the water for ingestion.

Manatees - Trichechus - The Animal Encyclopedia
Meet the manatees, a magnificent bunch mammals that are also known as sea cows due to their vegetarian diet of sea grasses and other aquatic vegetation.

A to Z Animal Profiles List By Group
An A to Z list of animal profiles available in The Animal Encyclopedia, sorted by animal group.

Bony Fishes - Osteichthyes - The Animal Encyclopedia
Profile of bony fishes, a group of vertebrates characterized by having a bony skeleton unlike the cartilaginous fishes whose skeleton consists of cartilage.

Cnidarians - Cnidaria - The Animal Encyclopedia
Cnidarians are a group of aquatic invertebrates that includes jellyfish, corals, sea anemones and hydras.

Boreal Forests - Forest Biome - The Habitat Encyclopedia
The boreal forest is a terrestrial habitat that consists of vast coniferous forests that encircle the globe in the high northern latitudes.

Brown Bear - Ursus arctos - The Animal Encyclopedia
Brown bears are the biggest of all bears. In fact, brown bears are also the larges of all land carnivores, outranking their cousins, the polar bears by a smidgen.

Atlantic Puffin - Fratercula arctica - The Animal Encyclopedia
Meet the Atlantic puffin, a small, charismatic seabird that looks like a cross between a penguin and a parrot, even though these birds are only remote relatives.

Lion Pride: The Social Circle Lions Keep
Gain an intimate view of the social lives of lions, the only species of cat that hangs out in groups called prides.

Animals: Key Characteristics
Learn about the key characteristics of animals including multicellularity, eukaryotic cells, sexual reproduction, movement, and more.

Shorebirds - Charadriiformes - The Animal Encyclopedia
Shorebirds are a group of birds that live along coastlines and in a variety of marine and freshwater wetlands.

Tundra Biome - The Habitat Encyclopedia
Explore the tundra, a remarkable biome where extreme cold, long winters, and nutrient-poor soils push life to its limits.

Cambrian Period - Timeline of Biological History
The Cambrian Period (543 to 505 million years ago) is the first time period of the Paleozoic Era. It is preceded by the Precambrian.

Cetaceans - Cetacea - The Animal Encyclopedia
Cetaceans are highly specialized mammals with numerous adaptations that make them well-suited for living in water.

Gray Whale - Eschrichtius robustus - The Animal Encyclopedia
Follow the gray whale on a most impressive annual migration, that stretches from Alaska's icy coastal waters to warm coastal waters of Mexico.

Caecilians - Gymnophiona - The Animal Encyclopedia
Don't be fooled into thinking these legless amphibians are snakes. They are closer kin to frogs and salamanders than to any scale-covered reptile.

Side-Necked Turtles
Side-necked turtles are a group of turtles that includes about 76 species.

Hidden-Necked Turtles
Hidden-necked turtles are a group of turtles that includes sea turtles, snapping turtles, tortoises, pig-nose turtles, soft-shell turtles and many others.

Amphibian or Reptile - Reptile and Amphibian Identification Key
Through a series of steps, this identification key will help you to learn the basics of identifying the main families of reptiles and amphibians.

Reptile or Amphibian? A Handy Identification Key
Take the guesswork out of distinguishing between reptiles and amphibians. This identification key will help you to differentiate the basic types of reptiles and amphibians.

Reptile - Legs - Reptile and Amphibian Identification Key
Through a series of steps, this identification key will help you to learn the basics of identifying the main families of reptiles and amphibians.

Amphibian - Legs - Reptile and Amphibian Identification Key
Through a series of steps, this identification key will help you to learn the basics of identifying the main families of reptiles and amphibians.

Amphibian - Tail - Reptile and Amphibian Identification Key
Through a series of steps, this identification key will help you to learn the basics of identifying the main families of reptiles and amphibians.

Amphibian - Warts - Reptile and Amphibian Identification Key
Through a series of steps, this identification key will help you to learn the basics of identifying the main families of reptiles and amphibians.

Falcons - Falco - The Animal Encyclopedia
Falcons are birds of prey that include kestrels, falcons, hobbies and merlins. They inhabit a wide range including Europe, Asia and North America.

Secretary Bird - Sagittarius serpentarius - The Animal Encyclopedia
Secretary birds are long-legged birds of prey native to sub-Saharan parts of Africa.