Animals & Wildlife Sitemap - Page 7 2016-09-26

Readers Wildlife Photo Gallery - Common Seal
This photograph of a Common Seal was submitted to the Reader's Wildlife Photo Gallery by Jan Tarrant. Page 138.

Readers Wildlife Photo Gallery - Deer
This photograph of a deer was submitted to the Reader's Wildlife Photo Gallery by Ananda Banerjee. Page 27.

Readers Wildlife Photo Gallery - Elephant Family
This photograph of an elephant family was submitted to the Reader's Wildlife Photo Gallery by Ananda Banerjee. Page 24.

Readers Wildlife Photo Gallery - Elephant Family
This photograph of an elephant family was submitted to the Reader's Wildlife Photo Gallery by Ananda Banerjee. Page 31.

Readers Wildlife Photo Gallery - Elephant by River
This photograph of an elephant by a river was submitted to the Reader's Wildlife Photo Gallery by Ananda Banerjee. Page 23.

Readers Wildlife Photo Gallery - Elephant
This photograph of an elephant by a stream was submitted to the Reader's Wildlife Photo Gallery by Ananda Banerjee. Page 76.

Readers Wildlife Photo Gallery - Elephant
Animals/Wildlife. Page 17.

Readers Wildlife Photo Gallery - Elephants Crossing Road
This photograph of elephants was submitted to the Reader's Wildlife Photo Gallery by Ananda Banerjee. Page 25.

Readers Wildlife Photo Gallery - Ducks
This photograph of ducks was submitted to the Reader's Wildlife Photo Gallery by Amber DiNenna. Page 34.

Readers Wildlife Photo Gallery - Cicada Molt
Animals/Wildlife. Page 37.

Readers Wildlife Photo Gallery - Cicada
This photograph of a cicada was submitted to the Reader's Wildlife Photo Gallery by Liz Schwartz. Page 36.

Readers Wildlife Photo Gallery - Cicada Molt
Animals/Wildlife. Page 35.

Readers Wildlife Photo Gallery - Detail of Dragonfly Wing
This photograph of a dragonfly wing was submitted to the Reader's Wildlife Photo Gallery by Carmen Mandel-Cesareo. Page 33.

Readers Wildlife Photo Gallery - Flight of the Crow
This photograph of a crow was submitted to the Reader's Wildlife Photo Gallery by Carmen Mandel-Cesareo. Page 32.

Readers Wildlife Photo Gallery - Deer
Animals/Wildlife. Page 16.

Readers Wildlife Photo Gallery - Deer
Animals/Wildlife. Page 21.

Readers Wildlife Photo Gallery - Elephant Portrait
This photograph of an elephant was submitted to the Reader's Wildlife Photo Gallery by Johan van Heerden. Page 9.

Readers Wildlife Photo Gallery - Elephant in Hiding
This photograph of an elephant hiding was submitted to the Reader's Wildlife Photo Gallery by Johan van Heerden. Page 8.

Readers Wildlife Photo Gallery - Crab
Animals/Wildlife. Page 44.

Readers Wildlife Photo Gallery - Dark-Eyed Junco
This photograph of a dark-eyed junco was submitted to the Reader's Wildlife Photo Gallery by Robert Visconti. Page 39.

Readers Wildlife Photo Gallery - Dhole (Wild Dog)
Dhole (Wild Dog) by Satyendra K. Tiwari. Page 56.

Readers Wildlife Photo Gallery - Eastern Bluebird
Animals/Wildlife. Page 38.

Readers Wildlife Photo Gallery - Dragonfly
Dragonfly by Robert Visconti. Animals/Wildlife. Page 69.

Readers Wildlife Photo Gallery - Cedar Waxwing
Cedar Waxwing by Robert Visconti. Page 70.

Readers Wildlife Photo Gallery - Downy Woodpecker
Photos from Animals & Wildlife Readers. Page 84.

Readers Wildlife Photo Gallery - Dragonfly
Animals/Wildlife. Page 73.

Readers Wildlife Photo Gallery - Falcon
Photos from Animals & Wildlife Readers. Page 72.

Readers Wildlife Photo Gallery - Female Northern Cardinal
Female Northern Cardinal by Robert Visconti. Page 49.

Readers Wildlife Photo Gallery - Fox Squirrel
Fox Squirrel by Robert Visconti. Animals/Wildlife. Page 47.

Readers Wildlife Photo Gallery - Columbian Ground Squirrels
Columbian Ground Squirrels. Animals/Wildlife. Page 93.

Readers Wildlife Photo Gallery - Dragonfly
Photos from Animals & Wildlife Readers. Page 82.

Readers Wildlife Photo Gallery - Cheetah Brothers
Animals/Wildlife. Page 109.

Readers Wildlife Photo Gallery - Chipmunk
Chipmunk by Tim Friesen. Animals/Wildlife. Page 116.

Readers Wildlife Photo Gallery - Doves
Photos from Animals & Wildlife Readers. Page 115.

Readers Wildlife Photo Gallery - Elephant Calf
Animals/Wildlife. Page 108.

Readers Wildlife Photo Gallery - Frog
Animals/Wildlife. Page 101.

Readers Wildlife Photo Gallery - JoJo
Animals/Wildlife. Page 128.

Readers Wildlife Photo Gallery - Emerald Tree Boa
Animals/Wildlife. Page 123.

A Visual Guide to Hummingbirds
A Visual Guide to Hummingbirds. Animals/Wildlife. Page 19.

A Visual Guide to Hummingbirds
A Visual Guide to Hummingbirds. Animals/Wildlife. Page 17.

Ecology: Animals and Habitats
The discipline of ecology is key to understanding how animal populations interact, behave, and change through time. Discover how groups of organisms interact and form habitats, communities, and ecosystems.

Identifying Birds - Tips on Identifying Birds
These tips will help you to identify the birds you encounter and in doing so will help you to better understand birds.

Animals / Wildlife Blogs
Blogs (or weblogs) are online journals that provide an invaluable way to record experiences, insights, facts, book/website recommendations, and discussions. Blogs may contain a wide range of subject matter, but here's a list of blogs that focus on animals, wildlife, and nature.

Discoveries and Research News of 2007
The year 2007 brought with it a wide range of wildlife headlines. There were fascinating discoveries--a new species of snow leopard in Indonesia and a new type of hummingbird in the cloud forests of Colombia.

Identifying Amphibians - Tips on Identifying Amphibians
These tips will help you to identify the amphibians you encounter and in doing so will help you to better understand amphibians.

Endangered Species - Endangered Species By Animal Group
The following collection of lists help you to identify animals that are listed on the US Threatened and Endanagered Species List. These lists are sorted by animal group. They are adaptations of threatened and endangered species data published at the The US Fish & Wildlife Service's Endangered Species Program Website.

Endangered Species - Endangered Species By State
The following collection of lists help you to identify the animals that are listed on the US Threatened and Endanagered Species List in each state. These lists are adaptations of threatened and endangered species data published at the The US Fish & Wildlife Service's Endangered Species Program Website.

Identifying Fishes - Tips on Identifying Fishes
These tips will help you to identify the fishes you encounter and in doing so will help you to better understand fishes.

Identifying Mammals - Tips on Identifying Mammals
These tips will help you to identify the mammals you encounter and in doing so will help you to better understand mammals.

Policy & Planning
The government policies and conservation plans active in a country determines to a large extent the health of various animal populations and habitats within their borders. The articles here focus on how policy and planning affect animals, their protection, conservation, and recovery.

Population Declines
Sudden or dramatic population declines are a sign of a species under threat. The articles here focus on declining populations of animals recorded from around the world and examine what's being done to stop shrinking populations from turning into extinctions.

Wildlife News Roundups - Animals and Wildlife News Digest
Wildlife News Roundup is a monthly digest featuring animals and wildlife headlines from around the web. It includes headlines from well-established sources such as the World Wildlife Fund, BBC News, New York Times, National Public Radio, National Geographic, and Birdlife International.

T - Zoology Glossary – Word List and Zoology Glossary
This zoology glossary contains a wide variety of terms and definitions. Its aim is to help you to understand the vast language that has developed for the study of animals. Terms in this category begin with the letter 'T'.

Global Climate Change
Global climate change has far-reaching implications for a majority of the organisms that inhabit our planet. Changes in the Earth's climate has already impacted some species and habitats and future changes could bring about more devestating consequeneces including extinctions.

Polar Bear Listing
The US Fish and Wildlife Service announced in 2006 that they would consider whether to place the Polar Bear (Ursus maritimus) on the list of species protected under the US Endangered Species Act. Yet the listing has been controversial and the US Government notoriously slow to come to a decision.

Animal ID Quizzes - Animal Identification Quizzes
The quizzes listed below enable you to test your knowledge of animal identification for a wide variety of animal groups from around the world.

Tentacle - Definition of Tentacle
When used in a zoological context, the term tentacle refers to a slender, elongated, flexible organ that grows near the mouth of an animal. Tentacles are most common in invertebrates, although they are present in some vertebrates as well. Tentacles serve a variety of functions and can can help the animal to move, feed, grasp objects, and gather sensory information.

Black Leopard Picture - Picture of a Black Leopard
In some cat species, a melanistic or black color morph appears on occasion in a wild population. Although these melanistic individuals may look quite different from their kin, they are color variations, not separate species. Examples of such melanistic individuals include black leopards and black jaguars. This picture shows a black leopard. Page 11.

Picture of a Black jaguar - Panthera onca
The black jaguar is a black color morph that appears occasionally in the wild. This picture and profile introduces you to the black jaguar. Page 11.

Cheetah Picture - Picture of a Cheetah and Cub
Young cheetahs have a long fringe of fur on the scruff of their neck and less distinct spots than adult cheetahs. Page 11.

Lion Cub Picture - Picture of a Lion Cub
Lion cubs have a subtle spotted pattern that fades as they mature. Adult lions have no pattern to their coat. Page 9.

Tiger Picture - Picture of a Tiger
The Siberian or Amur tiger is the largest of all the tiger subspecies. It has a reddish-orange coat that fades to white on its face and belly. It has dark brown, vertical stripes that cover its flanks and shoulders. Its fur is thicker and longer than other tiger subspecies, an adaptation to its cold, mountain habitat. Page 4.

White Tigers Picture - Picture of a Pair of White Tigers
In addition to melanistic individuals, some cat species also exhibit white color varieties. White tigers and white lions are two such examples. Neither white tigers nor white lions are albinos, but instead are white due to the presence of a recessive gene which causes their coat background color to be almost white instead of yellow. Page 17.

Caracal Picture - Picture of a Caracal
Caracals, like lions and mountain lions, have a uniformly colored coat. The most distinguishing characteristic of caracals is their long, tufted ears which stand straight up and are fringed with long black fur. The fur that covers the back and body of the caracal consists of short red-brown fur. The fur on the caracal's belly, throat, and chin is white. Page 3.

Cospe Snail - Arianta arbustorum
Animals / Wildlife. Page 9.

A Visual Guide to Terrestrial Snails
Animals / Wildlife. Page 19.

How Large Do Snails Grow?
Snails grow to a variety of different sizes depending on the species and individual. Page 10.

Snail Anatomy
Snails are very different from humans so when we think about body parts, we're often at a loss when relating the familiar parts of a human body to snails. Page 11.

A Natural History of Terrestrial Snails
Most terrestrial snails are hermaphroditic which means that each individual possesses both male and female reproductive organs. Page 12.

A Natural History of Terrestrial Snails
Snails are small and slow. They have few defenses. They must retain enough moisture so their tiny bodies don't dry out, and they must obtain enough food to give them energy to sleep through the long cold winter. So despite living in tough shells, snails are really quite vulnerable. Page 13.

A Natural History of Terrestrial Snails
Snails can haul up to 10 times their on weight when crawling up a vertical surface. When gliding along horizontally, they can carry up to 50 times their own weight. Page 14.

17-Year Cicadas: From Nymph to Adult
In the early summer of 2007, a brood of cicada nymphs known as the 'Northern Illinois Brood' dug their way out of the ground. They climbed up the trunks of trees where they underwent a final molt to their mature form. This series of photographs taken by wildlife photographer Robert Visconti illustrates this remarkable process. Page 9.

17-Year Cicadas: From Nymph to Adult
In the early summer of 2007, a brood of cicada nymphs known as the 'Northern Illinois Brood' dug their way out of the ground. They climbed up the trunks of trees where they underwent a final molt to their mature form. This series of photographs taken by wildlife photographer Robert Visconti illustrates this remarkable process. Page 10.

17-Year Cicadas: From Nymph to Adult
In the early summer of 2007, a brood of cicada nymphs known as the 'Northern Illinois Brood' dug their way out of the ground. They climbed up the trunks of trees where they underwent a final molt to their mature form. This series of photographs taken by wildlife photographer Robert Visconti illustrates this remarkable process. Page 6.

17-Year Cicadas: From Nymph to Adult
In the early summer of 2007, a brood of cicada nymphs known as the 'Northern Illinois Brood' dug their way out of the ground. They climbed up the trunks of trees where they underwent a final molt to their mature form. This series of photographs taken by wildlife photographer Robert Visconti illustrates this remarkable process. Page 8.

17-Year Cicadas: From Nymph to Adult
In the early summer of 2007, a brood of cicada nymphs known as the 'Northern Illinois Brood' dug their way out of the ground. They climbed up the trunks of trees where they underwent a final molt to their mature form. This series of photographs taken by wildlife photographer Robert Visconti illustrates this remarkable process. Page 3.

17-Year Cicadas: From Nymph to Adult
In the early summer of 2007, a brood of cicada nymphs known as the 'Northern Illinois Brood' dug their way out of the ground. They climbed up the trunks of trees where they underwent a final molt to their mature form. This series of photographs taken by wildlife photographer Robert Visconti illustrates this remarkable process. Page 11.

Snowy Egret - Photo of a Snowy Egret by Bruce Colin
This photograph of a snowy egret was submitted to the Readers Wildlife Photo Gallery by Bruce Colin. Page 3.

Paleoarchean - Definition of Paleoarchean
Paleoarchean. Animals / Wildlife.

Hallux - Definition of Hallux


Neoproterozoic - Definition of Neoproterozoic
Neoproterozoic. Animals / Wildlife.

Macaya Breast-Spot Frog Picture - Picture of a Macaya Breast-Spot Frog
The Macaya breast-spot frog is a critically endangered species from the Massif de la Hotte, Haiti. Adults are about the size of a grape. It is among the smallest frogs in the world. Prior to October 2010, the species was last seen 1991.. Page 10.

White-Cheeked Crested Gibbon Picture - Picture of a White-Cheeked Crested Gibbon
An adult male, northern white-cheeked crested gibbon in Vietnam. Page 7.

White-Cheeked Crested Gibbon Picture - Picture of a White-Cheeked Crested Gibbon
Adult female northern white-cheeked crested gibbon with baby and adult male. Page 3.

Forests of Daraina Picture - Picture of the Forests of Daraina
A new species of fork-marked lemur has been discovered in the dry forests near Daraina, Madagascar. Page 12.

Fork-Marked Lemur Picture - Picture of a Fork-Marked Lemur
A new species of fork-marked lemur has been discovered in the dry forests near Daraina, Madagascar. Page 5.

Fork-Marked Lemur Picture - Picture of a Fork-Marked Lemur
A new species of fork-marked lemur has been discovered in the dry forests near Daraina, Madagascar. Page 6.

Fork-Marked Lemur Picture - Picture of a Fork-Marked Lemur
A new species of fork-marked lemur has been discovered in the dry forests near Daraina, Madagascar. Page 4.

Fork-Marked Lemur Picture - Picture of a Fork-Marked Lemur
A new species of fork-marked lemur has been discovered in the dry forests near Daraina, Madagascar. Page 3.

Fork-Marked Lemur Picture - Picture of a Fork-Marked Lemur
A new species of fork-marked lemur has been discovered in the dry forests near Daraina, Madagascar. Page 2.

Fork-Marked Lemur Picture - Picture of a Fork-Marked Lemur
A new species of fork-marked lemur has been discovered in the dry forests near Daraina, Madagascar. Page 8.

Fork-Marked Lemur Picture - Picture of a Fork-Marked Lemur
A new species of fork-marked lemur has been discovered in the dry forests near Daraina, Madagascar. Page 9.

White-Cheeked Crested Gibbon Picture - Picture of a White-Cheeked Crested Gibbon
An adult female northern white-cheeked crested gibbon with baby and adult male. Page 6.

White-Cheeked Crested Gibbon Picture - Picture of a White-Cheeked Crested Gibbon
A female northern white-cheeked crested gibbon grooms a male. Page 4.

White-Cheeked Crested Gibbon Picture - Picture of a White-Cheeked Crested Gibbon
An adult male, northern white-cheeked crested gibbon in Vietnam. Page 5.

Whale Sharks - Photo Monitoring Ningaloo's Whale Sharks
Whale sharks are anything but camera shy. Between 1995 and 2006, scientists, tourists, divers, and tour guides snapped more than 5100 underwater photographs of these gentle giants at Ningaloo Marine Park, off the coast of Western Australia. Page 3.

Whale Sharks - Photo Monitoring Ningaloo's Whale Sharks
Whale sharks are anything but camera shy. Between 1995 and 2006, scientists, tourists, divers, and tour guides snapped more than 5100 underwater photographs of these gentle giants at Ningaloo Marine Park, off the coast of Western Australia. Page 4.

Whale Sharks - Photo Monitoring Ningaloo's Whale Sharks
Whale sharks are anything but camera shy. Between 1995 and 2006, scientists, tourists, divers, and tour guides snapped more than 5100 underwater photographs of these gentle giants at Ningaloo Marine Park, off the coast of Western Australia. Page 2.

Whale Sharks - Whale Shark Photo Spot
Whale sharks are anything but camera shy. Between 1995 and 2006, scientists, tourists, divers, and tour guides snapped more than 5100 underwater photographs of these gentle giants at Ningaloo Marine Park, off the coast of Western Australia. Page 10.

Whale Sharks - Photographing a Whale Shark
Whale sharks are anything but camera shy. Between 1995 and 2006, scientists, tourists, divers, and tour guides snapped more than 5100 underwater photographs of these gentle giants at Ningaloo Marine Park, off the coast of Western Australia. Page 11.

Whale Sharks - Photo Monitoring Ningaloo's Whale Sharks
Whale sharks are anything but camera shy. Between 1995 and 2006, scientists, tourists, divers, and tour guides snapped more than 5100 underwater photographs of these gentle giants at Ningaloo Marine Park, off the coast of Western Australia. Page 8.

Whale Sharks - Photo Monitoring Ningaloo's Whale Sharks
Whale sharks are anything but camera shy. Between 1995 and 2006, scientists, tourists, divers, and tour guides snapped more than 5100 underwater photographs of these gentle giants at Ningaloo Marine Park, off the coast of Western Australia. Page 6.

Whale Sharks - Photo Monitoring Ningaloo's Whale Sharks
Whale sharks are anything but camera shy. Between 1995 and 2006, scientists, tourists, divers, and tour guides snapped more than 5100 underwater photographs of these gentle giants at Ningaloo Marine Park, off the coast of Western Australia. Page 5.

Whale Sharks - Whale Shark and Divers
Whale sharks are anything but camera shy. Between 1995 and 2006, scientists, tourists, divers, and tour guides snapped more than 5100 underwater photographs of these gentle giants at Ningaloo Marine Park, off the coast of Western Australia. Page 12.

Whale Sharks - Photo Monitoring Ningaloo's Whale Sharks
Whale sharks are anything but camera shy. Between 1995 and 2006, scientists, tourists, divers, and tour guides snapped more than 5100 underwater photographs of these gentle giants at Ningaloo Marine Park, off the coast of Western Australia. Page 7.

Whale Sharks - Photo Monitoring Ningaloo's Whale Sharks
Whale sharks are anything but camera shy. Between 1995 and 2006, scientists, tourists, divers, and tour guides snapped more than 5100 underwater photographs of these gentle giants at Ningaloo Marine Park, off the coast of Western Australia. Page 9.

Whale Sharks - Whale Shark Portrait
Whale sharks are anything but camera shy. Between 1995 and 2006, scientists, tourists, divers, and tour guides snapped more than 5100 underwater photographs of these gentle giants at Ningaloo Marine Park, off the coast of Western Australia. Page 13.

Meerkat - Meerkat Portrait
Meerkat - Meerkat Pictures. Animals / Wildlife. Page 8.

Meerkat - Meerkat Backward Glance
The main predators of meerkats are birds of prey. Meerkats stay safe from predators by remaining alert and close to their burrows. When threatened, meerkats dive underground out of the reach of predators. Page 7.

Meerkat - Meerkat Family
Meerkats have litters often consist of between two and five kits born each year in November. Page 6.

Meerkat - Meerkat Pack
Meerkats feed on a diet that consists of insects, spiders, scorpions, eggs and small vertebrates. Page 5.

Meerkat - Meerkat Portrait
Meerkats are skilled diggers and construct extensive burrows in hard, compacted soil. They often dig multiple burrows throughout their territory. Sometimes they share their underground tunnels with ground squirrels. Page 4.

Meerkat - Meerkat Pair
Meerkats prefer habitat with short or sparse woody vegetation, lands often grazed by herds of ungulates. Page 3.

Meerkat - Meerkat Trio
Meerkats prop themselves up on their hind legs and scan the horizon looking for signs of danger. If a predator pops into view, the sentry meerkat lets out a warning bark. The other meerkats immediately run for cover within the many burrows they have throughout their territory. Page 9.

Meerkat - Meerkat at Attention
Meerkats use their belly to help regulate their body temperature. When hot, they spread themselves on cool damp ground, bellyside down to dissapate body heat. When cold, they lie on their back in the sunshine. Page 10.

Meerkat - Watchful Meerkat
Meerkats have a long snout and a round face. The tail of a meerkat is covered in a thin layer of fur and is not as long as their body. Page 11.

Meerkat - Meerkat Portrait
Meerkats have black fur around their eyes and ears. They have light reddish-brown fur on their back with about eight darker stripes of fur on their rump. The fur on their belly is a lighter color than the fur on their back. Page 12.

Meerkat - On the Lookout
The individuals in a meerkat pack forage together during daylight hours. While some members of the pack feed, one or more members of the pack stand sentry. Page 2.

Hundreds of New Species Found in Australian Reefs - Heron Island Research Station
Over three hundred species of soft corals have been recorded by scientists studying the species diversity of coral reefs at various locations off Australia's coasts. Page 21.

Hundreds of New Species Found in Australian Reefs - Lighted Aquarium
Over three hundred species of soft corals have been recorded by scientists studying the species diversity of coral reefs at various locations off Australia's coasts. Page 18.

Hundreds of New Species Found in Australian Reefs - Filming Soft Corals
Over three hundred species of soft corals have been recorded by scientists studying the species diversity of coral reefs at various locations off Australia's coasts. Page 24.

Hundreds of New Species Found in Australian Reefs - Green-Banded Snapping Shrimp
Over three hundred species of soft corals have been recorded by scientists studying the species diversity of coral reefs at various locations off Australia's coasts. Page 23.

Newfound Coral Reefs Off Brazilian Coast - View from Siriba Island
Scientists working off the coast of Bahia state in Brazil have discovered a vast region of previously unknown coral reefs. Surprisingly, the newly discovered reefs are not located in remote waters. Page 7.

Newfound Coral Reefs Off Brazilian Coast - Adult Masked Boobies
Scientists working off the coast of Bahia state in Brazil have discovered a vast region of previously unknown coral reefs. Surprisingly, the newly discovered reefs are not located in remote waters. Page 6.

Newfound Coral Reefs Off Brazilian Coast - Black Grouper
Scientists working off the coast of Bahia state in Brazil have discovered a vast region of previously unknown coral reefs. Surprisingly, the newly discovered reefs are not located in remote waters. Page 9.

Hundreds of New Species Found in Australian Reefs - Colonial Salp Jellyfish
Over three hundred species of soft corals have been recorded by scientists studying the species diversity of coral reefs at various locations off Australia's coasts. Page 5.

Hundreds of New Species Found in Australian Reefs - Ctenophore
Over three hundred species of soft corals have been recorded by scientists studying the species diversity of coral reefs at various locations off Australia's coasts. As many as half of the soft corals found by the researchers are believed to be species not previously known to science. Page 4.

Newfound Coral Reefs Off Brazilian Coast - Abrolhos Archipelago
Scientists working off the coast of Bahia state in Brazil have discovered a vast region of previously unknown coral reefs. Surprisingly, the newly discovered reefs are not located in remote waters. Page 3.

Wildlife Photographer Portfolio - Carol Freeman
This gallery contains images by wildlife photographer Carol Freeman. Page 2.

Wildlife Photographer Portfolio - Carol Freeman
This gallery contains images by wildlife photographer Carol Freeman. Page 3.

Student 1st Place - University of Miami Underwater Photography Contest
The University of Miami Rosenstiel School of Marine and Atmospheric Science has announced the winners of its fifth annual underwater photography contest. Page 11.

Wide Angle 1st Place - University of Miami Underwater Photography Contest
The University of Miami Rosenstiel School of Marine and Atmospheric Science has announced the winners of its fifth annual underwater photography contest. Page 5.

Otter - Photo of an Otter by Sue Monforte
This photograph of an otter was submitted to the Readers Wildlife Photo Gallery by Sue Monforte. Page 54.

Otter - Photo of an Otter by Sue Monforte
This photograph of an otter was submitted to the Readers Wildlife Photo Gallery by Sue Monforte. Page 50.

Otter - Photo of an Otter by Sue Monforte
This photograph of an otter was submitted to the Readers Wildlife Photo Gallery by Sue Monforte. Page 49.

Otter - Photo of an Otter by Sue Monforte
This photograph of an otter was submitted to the Readers Wildlife Photo Gallery by Sue Monforte. Page 43.

Otter - Photo of an Otter by Sue Monforte
This photograph of an otter was submitted to the Readers Wildlife Photo Gallery by Sue Monforte. Page 41.

Otter - Photo of an Otter by Sue Monforte
This photograph of an otter was submitted to the Readers Wildlife Photo Gallery by Sue Monforte. Page 45.

Otter - Photo of an Otter by Sue Monforte
This photograph of an otter was submitted to the Readers Wildlife Photo Gallery by Sue Monforte. Page 39.

Otter - Photo of an Otter by Sue Monforte
This photograph of an otter was submitted to the Readers Wildlife Photo Gallery by Sue Monforte. Page 38.

Peahen - Photo of a Peahen by Adee Tallents
This photograph of a peahen was submitted to the Readers Wildlife Photo Gallery by Adee Tallents. Page 24.

Frog - Photo of a Frog by Adee Tallents
This photograph of a frog was submitted to the Readers Wildlife Photo Gallery by Adee Tallents. Page 29.

Frog - Photo of a Frog by Adee Tallents
This photograph of a frog was submitted to the Readers Wildlife Photo Gallery by Adee Tallents. Page 30.

Leopard - Photo of a Leopard by Adee Tallents
This photograph of a leopard was submitted to the Readers Wildlife Photo Gallery by Adee Tallents. Page 27.

Butterfly - Photo of a Butterfly by Adee Tallents
This photograph of a butterfly was submitted to the Readers Wildlife Photo Gallery by Adee Tallents. Page 34.

Crocodile - Photo of a Crocodile by Adee Tallents
This photograph of a crocodile was submitted to the Readers Wildlife Photo Gallery by Adee Tallents. Page 31.

Spider - Photo of a Spider by Adee Tallents
This photograph of a spider was submitted to the Readers Wildlife Photo Gallery by Adee Tallents. Page 18.

Tiger - Photo of a Tiger by Adee Tallents
This photograph of a tiger was submitted to the Readers Wildlife Photo Gallery by Adee Tallents. Page 16.

Spider - Photo of a Tropical Fish by Adee Tallents
This photograph of a spider was submitted to the Readers Wildlife Photo Gallery by Adee Tallents. Page 15.

Red Panda - Photo of a Red Panda by Adee Tallents
This photograph of a red panda was submitted to the Readers Wildlife Photo Gallery by Adee Tallents. Page 22.

Anemone - Photo of a Anemone by Adee Tallents
This photograph of a anemone was submitted to the Readers Wildlife Photo Gallery by Adee Tallents. Page 21.

Snail - Photo of a Snail by Adee Tallents
This photograph of a snail was submitted to the Readers Wildlife Photo Gallery by Adee Tallents. Page 20.

Bird - Photo of a Bird by Claude Desrochers
This photograph of a bird was submitted to the Readers Wildlife Photo Gallery by Claude Desrochers. Page 9.

Owl - Photo of an Owl by Claude Desrochers
This photograph of a butterfly was submitted to the Readers Wildlife Photo Gallery by Claude Desrochers. Page 7.

Bird of Prey - Photo of a Bird of Prey by Claude Desrochers
This photograph of a bird of prey was submitted to the Readers Wildlife Photo Gallery by Claude Desrochers. Page 13.

Bird - Photo of a Bird by Claude Desrochers
This photograph of a bird was submitted to the Readers Wildlife Photo Gallery by Claude Desrochers. Page 11.

Bird - Photo of a Bird by Claude Desrochers
This photograph of a bird was submitted to the Readers Wildlife Photo Gallery by Claude Desrochers. Page 3.

Bird - Photo of a Bird by Claude Desrochers
This photograph of a butterfly was submitted to the Readers Wildlife Photo Gallery by Claude Desrochers. Page 2.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia. Page 2.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia. Page 5.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia. Page 6.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia. Page 7.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia. Page 12.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia. Page 16.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia. Page 18.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia. Page 19.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia. Page 22.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia. Page 24.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia. Page 26.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia. Page 27.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia. Page 28.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia. Page 30.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia. Page 31.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia. Page 32.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia. Page 35.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia. Page 36.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia. Page 37.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia. Page 42.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia. Page 44.

A Virtual Tour of the Maui Ocean Center
A Virtual Tour of the Maui Ocean Center. Page 38.

A Virtual Tour of the Maui Ocean Center
A Virtual Tour of the Maui Ocean Center. Page 37.

A Photographic Tour of the Maui Ocean Center
A Photographic Tour of the Maui Ocean Center. Page 18.

A Photographic Tour of the Maui Ocean Center
A Photographic Tour of the Maui Ocean Center. Page 17.

A Photographic Tour of the Maui Ocean Center
A Photographic Tour of the Maui Ocean Center. Page 16.

March of the Penguins
Animals / Wildlife. Page 2.

March of the Penguins
March of the Penguins. Animals / Wildlife. Page 15.

March of the Penguins
March of the Penguins. Animals / Wildlife. Page 17.

March of the Penguins
March of the Penguins. Animals / Wildlife. Page 18.

March of the Penguins
March of the Penguins. Animals / Wildlife. Page 19.

March of the Penguins
Animals / Wildlife. Page 3.

March of the Penguins
March of the Penguins. Animals / Wildlife. Page 20.

March of the Penguins
March of the Penguins. Animals / Wildlife. Page 21.

March of the Penguins
March of the Penguins. Animals / Wildlife. Page 23.

March of the Penguins
March of the Penguins. Animals / Wildlife. Page 27.

March of the Penguins
March of the Penguins. Animals / Wildlife. Page 29.

March of the Penguins
Animals / Wildlife. Page 4.

March of the Penguins
March of the Penguins. Animals / Wildlife. Page 30.

March of the Penguins
March of the Penguins. Animals / Wildlife. Page 33.

March of the Penguins
March of the Penguins. Animals / Wildlife. Page 35.

March of the Penguins
March of the Penguins. Animals / Wildlife. Page 37.

March of the Penguins
March of the Penguins. Animals / Wildlife. Page 38.

March of the Penguins
March of the Penguins. Animals / Wildlife. Page 39.

March of the Penguins
March of the Penguins. Animals / Wildlife. Page 7.

March of the Penguins
March of the Penguins. Animals / Wildlife.

Readers Wildlife Photo Gallery - Antelope
This photograph of a antelope was submitted to the Reader's Wildlife Photo Gallery by Johan van Heerden. Page 19.

Bee - Photograph of a Bee by Donna Y
This photograph of a bee was submitted to the Reader's Wildlife Photo Gallery by Donna Y. Page 7.

Readers Wildlife Photo Gallery - Bird
Reader's Wildife Photo Gallery. Animals / Wildlife. Page 23.

Readers Wildlife Photo Gallery - Bird with Prey
This photograph of a bird with its prey was submitted to the Reader's Wildlife Photo Gallery by Johan van Heerden. Page 12.

Readers Wildlife Photo Gallery - Bird
This photograph of a bird was submitted to the Reader's Wildlife Photo Gallery by Johan van Heerden. Page 14.

Readers Wildlife Photo Gallery - Bird
This photograph of a bird was submitted to the Reader's Wildlife Photo Gallery by Johan van Heerden. Page 17.

Readers Wildlife Photo Gallery - Bird
This photograph of a bird was submitted to the Reader's Wildlife Photo Gallery by Johan van Heerden. Page 25.

Readers Wildlife Photo Gallery - Birds
This photograph of birds was submitted to the Reader's Wildlife Photo Gallery by Amit Ray. Page 5.

Readers Wildlife Photo Gallery - Cat
This photograph of a cat was submitted to the Reader's Wildlife Photo Gallery by Johan van Heerden. Page 18.

Readers Wildlife Photo Gallery - Barn Swallows
This photograph of a barn swallows was submitted to the Reader's Wildlife Photo Gallery by Bruce Colin. Page 84.

Readers Wildlife Photo Gallery - Baby Bird in Nest
This photograph of a baby bird was submitted to the Reader's Wildlife Photo Gallery by Amber DiNenna. Page 44.

Readers Wildlife Photo Gallery - Black Rat Snake
Black Rat Snake by Nicholas Segal. Page 56.

Readers Wildlife Photo Gallery - Brown-headed Cowbird
Brown-Headed Cowbird by Robert Visconti. Page 66.

Readers Wildlife Photo Gallery - Bunny
Bunny by Robert Visconti. Animals / Wildlife. Page 67.

Readers Wildlife Photo Gallery - Butterfly on Leaf
Butterfly on Leaf by Satyendra K. Tiwari. Page 70.

Readers Wildlife Photo Gallery - Butterfly on Twig
Butterfly on Twig by Satyendra K. Tiwari. Page 71.

Readers Wildlife Photo Gallery - Camel Fair in Pushkar, Rajasthan
Camel Fair in Pushkar, Rajasthan by Satyendra K. Tiwari. Page 77.

Readers Wildlife Photo Gallery - Camel
Camel at Sunset by Satyendra K. Tiwari. Page 78.

Readers Wildlife Photo Gallery - Camel in the Twilight
Camel in the Twilight by Satyendra K. Tiwari. Page 68.

Readers Wildlife Photo Gallery - Bumble Bee
Bumble Bee by Robert Visconti. Animals / Wildlife. Page 79.

Readers Wildlife Photo Gallery - Canada Goose
Canada Goose by Robert Visconti. Animals / Wildlife. Page 88.

Readers Wildlife Photo Gallery - Black-capped Chickadee
Photos from Animals & Wildlife Readers. Page 108.

Readers Wildlife Photo Gallery - Bullfrog
Photos from Animals & Wildlife Readers. Page 105.

Readers Wildlife Photo Gallery - Bullfrog
Photos from Animals & Wildlife Readers. Page 104.

Readers Wildlife Photo Gallery - Butterfly
Animals / Wildlife. Page 141.

Readers Wildlife Photo Gallery - Butterfly
Animals / Wildlife. Page 98.

Readers Wildlife Photo Gallery - Butterfly
Animals / Wildlife. Page 140.

Readers Wildlife Photo Gallery - Butterfly
Photos from Animals & Wildlife Readers. Page 95.

Readers Wildlife Photo Gallery - Brown Lizard
Brown Lizard. Animals / Wildlife. Page 122.

Readers Wildlife Photo Gallery - Bat-Eared Fox
This photograph of a bat-eared fox was submitted to the Reader's Wildlife Photo Gallery by Bruce Colin. Page 133.

A Visual Guide to Hummingbirds
A Visual Guide to Hummingbirds. Animals / Wildlife. Page 19.

Meerkat - Meerkat Mother and Young
Photos and pictures from Animal Planet's Meerkat Manor television series which follows the ups and downs of a clan of meerkats. In the series, you meet members of the Whiskers family which includes the headstrong Flower and the protective Zaphod. Page 2.

A Visual Guide to Hummingbirds
The hummingbird family (Family Trochilidae) is subdivided into two subfamilies, the hermit hummingbirds (Subfamily Phaethornithinae) and the trochilines (Subfamily Trochilinae). Page 2.

Readers Wildlife Photo Gallery - Baby Birds
This photograph of a baby birds was submitted to the Reader's Wildlife Photo Gallery by RandiLane Clift. Page 147.

Readers Wildlife Photo Gallery - Bears
This photograph of a bears was submitted to the Reader's Wildlife Photo Gallery by Patricia Topps. Page 173.

Readers Wildlife Photo Gallery - Bears
This photograph of a bears was submitted to the Reader's Wildlife Photo Gallery by Patricia Topps. Page 172.

Readers Wildlife Photo Gallery - Bird
Animals / Wildlife. Page 156.

Readers Wildlife Photo Gallery - Bird
Animals / Wildlife. Page 157.

Readers Wildlife Photo Gallery - Blacktail Deer
Animals / Wildlife. Page 171.

Readers Wildlife Photo Gallery - Bobcat
Animals / Wildlife. Page 167.

Readers Wildlife Photo Gallery - A Young Spider
This photograph of a spider was submitted to the Reader's Wildlife Photo Gallery by Jeff. Page 153.

Readers Wildlife Photo Gallery - Bird
This photograph of a bird was submitted to the Reader's Wildlife Photo Gallery by Carol. Page 158.

A Virtual Tour of the Maui Ocean Center
The Maui Ocean Center's aim is to ecourage people to better understand, appreciate, and respect Hawaii's marine life. This state-of-the-art aquarium was opened in March 1998 and now includes a dazzling collection of Hawai'i's unique fish, sea turtles, sharks, and invertebrates. Page 51.

Developmental Response - Definition of Developmental Response
The acquiring by an organism of one of multiple possible forms depending on the environmental conditions under which the organism develops and grows.

Mammals - The Evolutionary Tree of Mammals
The chart above illustrates how the various mammal groups are related to one another. Groups that share more recent common ancestors are located on branches that are closer to each other.

Rare - Definition of Rare


Resident - Definition of Resident


Lores - Definition of Lores


Neotropics - Definition of Neotropics


Old World - Definition of Old World


Pantropical - Definition of Pantropical


Group Selection - Definition of Group Selection
Elimination of groups of individuals with a detrimental genetic trait, caused by competition with other groups lacking the trait; often called intergroup selection.

Hadean Eon - Definition of Hadean Eon
The Hadean Eon (4500 to 3800 MYA) is the earliest of all time periods recognized in the history of Earth.

Heat Sensitive Pit - Definition of Heat Sensitive Pit
Organ that helps certain snakes locate their warm-blooded prey. In boas and pythons, these border the mouth (labial pits); in pitvipers, they are between the nostri, the eye, and the moutn (loreal pits).

Heterodactyly - Definition of Heterodactyly


Kleptoparasitism - Definition of Kleptoparasitism


Labial - Definition of Labial
Pertaining to the lips. Animals / Wildlife.

El Niño-Southern Oscillation - Definition of El Niño-Southern Oscillation
A warm current from the tropics that intrudes each winter along the west coast of northern South America.

Gene Flow - Definition of Gene Flow
Exchange of genetic traits between populations by movement of individuals, gametes, or spores.

Immature - Definition of Immature


Internal Compass - Definition of Internal Compass


Food Chain - Definition of Food Chain
A representation of the passage of energy through populations in the community.

Juvenal - Definition of Juvenal


Migration - Definition of Migration
The annual movement of groups of animals between their breeding grounds and wintering sites. Migratory movement usually occurs between areas of different lattitude or elevation.

Mitochondrial DNA Study - Definition of Mitochondrial DNA Study
A study of the origins and relationships among species and other taxa that examines the mitocondrial DNA of the organisms to establish genetic similarities and differences and in turn establish phylogenetic relationships based on genetic evidence.

Migratory Overshooting - Definition of Migratory Overshooting
A phenomenon in which migratory animals move along the correct route but travel beyond the normal distance and thus over-shoot their destination.

Cretaceous Period - Definition of the Cretaceous Period
The Cretaceous Period (144 - 65 Myr BP) is the third of three periods during the Mesozoic Era. It is preceded by the Jurassic Period and followed by the Tertiary Period.

Whale Sharks - Photo Monitoring Ningaloo's Whale Sharks
Whale sharks are anything but camera shy. Between 1995 and 2006, scientists, tourists, divers, and tour guides snapped more than 5100 underwater photographs of these gentle giants at Ningaloo Marine Park, off the coast of Western Australia.

Whale Shark Pictures - Pictures of Whale Sharks
Whale sharks are anything but camera shy. Between 1995 and 2006, scientists, tourists, divers, and tour guides snapped more than 5100 underwater photographs of these gentle giants at Ningaloo Marine Park, off the coast of Western Australia.

Whale Shark Pictures - Pictures of Whale Sharks
Whale sharks are anything but camera shy. Between 1995 and 2006, scientists, tourists, divers, and tour guides snapped more than 5100 underwater photographs of these gentle giants at Ningaloo Marine Park, off the coast of Western Australia.

Hundreds of New Species Found in Australian Reefs - Pseudocodium
Over three hundred species of soft corals have been recorded by scientists studying the species diversity of coral reefs at various locations off Australia's coasts. As many as half of the soft corals found by the researchers are believed to be species not previously known to science.

Hundreds of New Species Found in Australian Reefs - Photo Gallery
Over three hundred species of soft corals have been recorded by scientists studying the species diversity of coral reefs at various locations off Australia's coasts. As many as half of the soft corals found by the researchers are believed to be species not previously known to science.

Ernst Haeckel - Artforms of Nature - Kunstformen der Natur
Illustrations from Ernst Haeckel's Kunstformen der Natur (Artforms of Nature), published in 1904.

March of the Penguins
The documentary 'March of the Penguins' traces the steps of emperor penguins during the course of a year, as they undergo repeated, harrowing marches back and forth across the Antarctic icescape.

March of the Penguins
The documentary 'March of the Penguins' traces the steps of emperor penguins during the course of a year, as they undergo repeated, harrowing marches back and forth across the Antarctic icescape.

March of the Penguins
The documentary 'March of the Penguins' traces the steps of emperor penguins during the course of a year, as they undergo repeated, harrowing marches back and forth across the Antarctic icescape.

Meerkats - Four Meerkats
Photos and pictures from Animal Planet's Meerkat Manor television series which follows the ups and downs of a clan of meerkats. In the series, you meet members of the Whiskers family which includes the headstrong Flower and the protective Zaphod.

A Virtual Tour of the Maui Ocean Center
The Maui Ocean Center's aim is to ecourage people to better understand, appreciate, and respect Hawaii's marine life. This state-of-the-art aquarium was opened in March 1998 and now includes a dazzling collection of Hawai'i's unique fish, sea turtles, sharks, and invertebrates.

A Virtual Tour of the Maui Ocean Center
The Maui Ocean Center's aim is to ecourage people to better understand, appreciate, and respect Hawaii's marine life. This state-of-the-art aquarium was opened in March 1998 and now includes a dazzling collection of Hawai'i's unique fish, sea turtles, sharks, and invertebrates.

A Virtual Tour of the Maui Ocean Center
The Maui Ocean Center's aim is to ecourage people to better understand, appreciate, and respect Hawaii's marine life. This state-of-the-art aquarium was opened in March 1998 and now includes a dazzling collection of Hawai'i's unique fish, sea turtles, sharks, and invertebrates.

A Virtual Tour of the Maui Ocean Center
The Maui Ocean Center's aim is to ecourage people to better understand, appreciate, and respect Hawaii's marine life. This state-of-the-art aquarium was opened in March 1998 and now includes a dazzling collection of Hawai'i's unique fish, sea turtles, sharks, and invertebrates.

Meerkat - Meerkat Trio
Meerkats are highly social mammals that form packs of between 10 and 30 individuals consisting of several breeding pairs.

Meerkat Pictures - Pictures of Meerkats
Meerkats are highly social mammals that form packs of between 10 and 30 individuals consisting of several breeding pairs. The individuals in a meerkat pack forage together during daylight hours. While some members of the pack feed, one or more members of the pack stand sentry.

17-Year Cicadas: From Nymph to Adult
In the early summer of 2007, a brood of cicada nymphs known as the 'Northern Illinois Brood' dug their way out of the ground. They climbed up the trunks of trees where they underwent a final molt to their mature form. This series of photographs taken by wildlife photographer Robert Visconti illustrates this remarkable process.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia.

Wildlife Photographer Portfolio - Rajveer Ambalia
This gallery contains images by wildlife photographer Rajveer Ambalia.

A Virtual Tour of the Maui Ocean Center
A Virtual Tour of the Maui Ocean Center

Newfound Coral Reefs Off Brazilian Coast - Dog Snapper
Scientists working off the coast of Bahia state in Brazil have discovered a vast region of previously unknown coral reefs. Surprisingly, the newly discovered reefs are not located in remote waters.

Fork-Marked Lemur Picture - Picture of a Fork-Marked Lemur
A new species of fork-marked lemur has been discovered in the dry forests near Daraina, Madagascar.

White-Cheeked Crested Gibbon Picture - Picture of a White-Cheeked Crested Gibbon
A female northern white-cheeked crested gibbon grooms a male.

ENSO - Definition of ENSO
El Niņo/Southern Oscillation; an occasional shift in winds and ocean currents, centered in the South Pacific region, with worldwide consequences for climate and biological systems.

Endocrine - Definition of Endocrine
Pertaining to ductless glands that produce hormones.

Gelding - Definition of Gelding
A male horse that has been castrated.

Habitat - Definition of Habitat
Place where an animal or plant normally lives, often characterized by a dominant plant form or physical characteristic (that is, the stream habitat, the forest habitat).

Ecocline - Definition of Ecocline
A gradient of vegetation structure that correlates to variation in one or more environmental characteristics in a geographical area.

Ecology - Definition of Ecology
The study of the ecosystems, communities, habitats, and other elements of the natural environment that examines the relationships among organisms as well as relationships between organisms and their environment.

Emigration - Definition of Emigration
Movement of individuals out of a population.

Ecotone - Definition of Ecotone
An edge habitat or zone of transition created by adjacent and distinctly different habitats.

Ecotype - Definition of Ecotype
A subpopulation that differes genetically and is restricted to a specific habitat.

Embryo - Definition of Embryo
A plant or animl in an early stage of development; generally still contained within the seed, egg, or uterus.

Femur - Definition of Femur
The thigh bone in vertebrates that have four limbs or the third segment of the leg in insects.

Filly - Definition of Filly
A female horse that is four years or younger in age.

Echinodermata - Definition of Echinodermata
The phylum of animals whose members are pentaradially (five-axis) symmetrical as adults, have a water-vascular system, and an endoskeleton.

Echolocation - Definition of Echolocation
A method of sensing surrounding objects that employs pulses of high-frequency sound. The resulting echoes bounce back from any objects surfaces and enables the organism that released the high-frequency sound to construct a three dimensional image of its surroundings. Echolocation is used by some mammals and a small number of cave-dwelling birds.

Diploblastic - Definition of Diploblastic
Having body parts derived from two layers during embryologic development.

Patagium - Definition of Patagium
A membrane of double-sided skin that forms the wing material in bats.

Proboscis - Definition of Proboscis
An elongated snout, trunk, or mouthpart.

Peep - Definition of Peep


Periostracum - Definition of Periostracum
The outermost layer of a snail's shell. Consists of conchin (a mixture of organic compounds), gives the shell color.

Oval - Definition of Oval


Nematocyst - Definition of Nematocyst
A specialized stinging cell in coelenterates; contains a hairlike structure that can be ejected.

Inhibition - Definition of Inhibition
The suppression of a colonizing population by another that is already established, especially during successional sequences.

Keratin - Definition of Keratin
An sturdy, insoluble protein that is present in the feathers of birds, the scales of reptiles, and the hooves, hair, and nails of mammals.

Mare - Definition of Mare
A female horse, more than four years old.

Humus - Definition of Humus
Fine particles of organic detritis in soil.

Hatchling - Definition of Hatchling
Animal that has just emerged from an egg.

Woodpeckers and Toucans - Facts, Classification and Evolution of Woodpeckers and Toucans
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.

Mollusks - Facts, Classification and Evolution of 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.

Hares, Rabbits and Pikas - Facts, Classification and Evolution of Hares, Rabbits and Pikas
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.

Gastropods - Facts and Profiles About Gastropods
Gastropods (Class Gastropoda) include a wide variety of organisms such as terrestrial snails and slugs, sea slugs, sea hares, sea butterflies, canoe shells, conchs, whelks, limpets, periwinkles, oyster borers, coweries, nudibranchs, and many others.

Monkeys and Apes - Facts, Classification and Evolution
Monkeys and apes are a group of primates that includes tarsiers, new world monkeys, old world monkeys and apes. There are 263 species of monkeys and apes alive today. The articles listed below provide information about the characteristics, classification and evolution of monkeys and apes.

Prosimians - Facts, Classification and Evolution of Prosimians
Prosimians are a group of primates that includes lemurs, woolly lemurs, tarsiers, aye-ayes, lorises, galagos and pottos. There are 85 species of prosimians alive today. The articles listed below provide information about the characteristics, classification and evolution of prosimians.

These are articles and websites about bee biology, identification and taxonomy, as well as the latest news about bees.
These are articles and websites about bee biology, identification and taxonomy, as well as the latest news about bees.

Cicadas
Cicadas are insects that belong to the order Homoptera. Read about cicada biology and life cycle, learn to identify cicadas, and listen to recordings of their various songs. Cicadas enjoy a worldwide distribution, and are renowned for their beauty, loud song, and longevity.

Butterflies and Moths
Butterflies are the most ornamental of the insects, and get the best press of all arthropods. Moths are somewhat less popular, and many of them have caterpillars who are agricultural pests. Read here to explore the world of butterflies, moths and skippers in all of their colorful variety.

Butterflies and Moths - Facts, Classification and Evolution of Butterflies and Moths
Butterflies and Moths

Hoofed Mammals - Facts, Classification and Evolution of Hoofed Mammals
Hoofed mammals include two orders, the odd-toed hoofed mammals (Order Perissodactyla) and the even-toed hoofed mammals (Order Artiodactyla). Odd-toed hoofed mammals include horses and their relatives, rhinoceroses, and tapirs. Even-toed hoofed mammals include pigs, hippos, deer, camels, giraffe and okapi, and cattle.

Books / Nature Writing
This category contains book reviews, reading recommendations, and tips on researching natural history subjects. It also includes articles about how you can get started writing about nature and how to record what you see in the wild places you explore.

Albatrosses and Petrels - Facts, Classification and Evolution of Albatrosses and Petrels
Albatrosses and petrals, 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 petrals.

Frogs and Toads - Facts, Classification and Evolution of Frogs and Toads
Frogs and toads are a group of amphibians that includes painted frogs, marsupial frogs, tru 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.

Hydraxes
Hydraxes

Anteaters and Relatives - Facts and Profiles About Anteaters and Relatives
Anteaters and their relatives form a group of mammals that includes anteaters, sloths, and armadillos. Xenarthrans inhabit areas of South America and the southern parts of North America. They are primarily insectivores, herbivores, and frugivores.

Hummingbirds - Facts and Profiles About Hummingbirds
Hummingbirds include over 300 species of birds. Hummingbirds are small birds with long narrow beaks and long thin tongues. They exhibit a unique hovering flight ability.

Freshwater Crocodile Picture - Picture of a Freshwater Crocodile
The freshwater crocodile is a species of crocodilian that is endemic to Australia. It occupies freshwater wetlands throughout Queensland, Western Australia and the Northern Territory.

Ants
Ants (Family Formicidae) are a diverse group of insects that includes more than 12,000 species. Ants are highly social insects and form complex colonies that consist of millions of individuals that fall into castes (such as workers and drones) which serve different roles within the ant colony.

Galapagos Wildlife - Recommended Reading About Galapagos Wildlife
Recommended books and websites for information about the Galapagos Islands and its wildlife.

Flatworms - Facts and Profiles About Flatworms
Flatworms

Sea Spiders - Facts and Profiles About Sea Spiders
Sea-spiders

Centipedes and Millipedes - Facts and Profiles About Centipedes and Millipedes
Centipedes and Millipedes

Classifying Animals - How Animals are Classified
For centuries, the naming and classification of living organisms into groups has been an integral part of the study of nature. By understanding how animals are classified, we can organize our knowlege of organisms and draw insights into how animals relate to one another.

Nature Photography
Nature photography is a wonderful way to enjoy animals and wildlife while providing the opportunity for you to express yourself. Find articles and tips on how to capture wildlife in your photographs.

Animals & Wildlife - Full Review
Full Review document index for the About.com Animals & Wildlife GuideSite

Animals & Wildlife - Video Subject
Video Subject document index for the About.com Animals & Wildlife GuideSite

Beetles
Beetles are the most numerous of the insects, and include ladybugs, fireflies, scarabs and weevils. Some are breathtakingly beautiful, some are ornate and bizarre, some have curious habits (like the click beetles), some are beneficial to humans and some are destructive agricultural pests.

Fleas
Fleas belong to the insect order Siphonaptera, a group of wingless, sucking insects with legs modified for jumping. All are parasitic on mammals or birds.

Aphids
Explore links about aphid anatomy, physiology, life cycle, identification, and classification. Also learn about aphid research and news.

All About Animals
All About Animals

Animals & Wildlife 101
There are so many things you can learn about animals and wildlife that it can be difficult to know where to begin. These articles are aimed at helping you explore the variety of information and experiences you can explore as you widen your understanding of the amazing animals that share this planet with us.

Avian Influenza
Avian influenza, an infectious disease that affects birds, was first identified in Italy over a century ago and now occurs worldwide and affects all types of birds with varying degrees of severty.

Backyard Wildlife
You often don't have to go far to find wildlife all around you. Sometimes it is a close as your backyard. These articles help you discover the world of animals waiting for you in your back yard.

Bedbugs
This is a collection of links to excellent articles and websites about bedbugs. It includes articles about the biology of bedbugs, bedbugs as parasites, and bedbugs in song.

Biogeography
Find out how the biology, physical geography, and ecology of the landscape influences the distribution of animals throughout the earth's various ecosystems.

Bird Watching
Bird watching (or 'birding') is a popular past time. From searching for elusive birds to add to your life-list to watching the same birds visit feeders in your back garden each morning, bird watching has many rewards.

Cockroaches
Cockroaches belong to one of the oldest orders of insects and date back more than 300 million years in the fossil recoird. There are about 4000 known species of cockroaches.

Cultural Entymology
Insects and spiders appear in art, literature, music, movies and folklore. Our admiration, fear, and fascination with these animals has made them an important part of human cultures from all over the world.