Animal Facts

These animals aren't treehuggers in the environmental activist sense. They have to hold on for dear life! Meet the top 10 tree-dwelling animals.

You'd think that earthworms are good for fish bait and little else, but that isn't the case at all. Earthworms are the engines that help local ecosystems run. They aerate soil, help facilitate plant composition and so much more.

By Josh Clark

You don't have to live in some exotic, tropical environment to find a venomous critter. They live all over the world, and some may be closer than you think.

By Marsha Walton

Check out these devastating images of animals after the Gulf Oil spill.

Your kitten's strange faces and chirps might seem perfectly intelligible, but how much meaning can you really read into them? Can animals display happiness, sadness, empathy or fear?

By Jessika Toothman

All animals might not be able to speak, but they certainly have other ways of communicating. How do animals pass on information to their own species, and how do they pick up cues from other members of the animal kingdom?

By Jessika Toothman

Sleep might seem pretty simple, but scientists are still scratching their heads over questions surrounding the slumbering state. What does sleep mean to a whale, a brown bat, a migratory bird or even an invertebrate?

By Jessika Toothman

Distressed birds will peck out their feathers until they expose their flesh to infection. Whales will die stranded on beaches for no obvious reason. But do animals willingly end their own lives?

By Jessika Toothman

Whether you're talking about a swarm of bees buzzing about, a cluster of butterflies sucking down nectar or a nest of cockroaches hidden in a corner of your house, insects are really plentiful. How plentiful?

By Chris Jones

Most of us know not to pet an angry dog with a foaming mouth, and that perhaps snuggling with a bat isn't the brightest rabies-prevention plan. But how does rabies choose its victims, and what can it do to humans?

By Chris Obenschain

Coyotes and badgers? This unlikely partnership is actually a surefire thing when it comes to catching a tasty dinner.

By Cristen Conger

As you visit each amazing exhibit at your local zoo, do you ever feel a twinge of guilt or remorse when watching these enclosed creatures? Are zoos helping or hurting animals?

By Jennifer Horton

Many kinds of animals are native only to Africa, such as gorillas, chimpanzees, zebras, giraffes, hippopotamuses. Take a gander at these amazing African animals and see how many you recognize.

By Marie Bobel

The next "CSI" spin-off may not take place at a zoo or wildlife preserve, but there are real-life detectives working to solve cases of the furry, feathered variety.

By Maria Trimarchi

A Komodo dragon's bite is a deadly cocktail of bacteria and venom. But is it worse than a cobra's bite? Who would win in the hypothetical battle of lizards versus snakes?

By Julia Layton

Ever since Teddy Roosevelt witnessed a piranha feeding frenzy, the fish have been known as fearsome predators. But can they really strip a cow to the bone?

By Julia Layton

Arctic animals, such as polar bears, puffins and narwhals, have developed amazing adaptations to be able to survive in the arctic tundra. Check out these Arctic animal pictures to catch a glimpse of animals that you'll probably never see up close.

By Marie Bobel

Where do we get all the fish and other seafood that we eat? How do fish farmers keep up with the heavy demand?

By Sarah Winkler

Forks. Knives. Spoons. Chopsticks. All those utensils are a pain to pick up and set down again. What if you could just open your mouth wide?

By Molly Edmonds

Domesticated animals provide us with innumerable products, hours of labor and even loving companionship. Find out why the dog was so easily domesticated and why you'll never see someone riding a zebra.

By Jane McGrath

Well, duh. Of course animals have personalities, right? Find out how scientists are proving what pets owners have always suspected: animals -- both pets and wild animals -- possess personality.

By Jane McGrath

Walking, breathing, thinking: All of these activities burn energy. But in the winter when food supplies are scarce, some animals conserve their energy -- by hibernating.

By Ed Grabianowski

The droopy-faced bloodhound. The prancing poodle. The small Maltese you could easily mistake for a mop. How can these impossibly different dogs compete for the same prize?

By Jane McGrath

Dogsled race officials and mushers say that they put the welfare of the dogs first. But animal rights activists say they will continue to protest the Iditarod and other sled dog races.

By Kathleen Seiler Neary

Caribou travel 2,000 miles over arctic tundra in order to migrate. The annual migration of monarch butterflies lasts longer than a typical monarch's lifespan. What makes these animals so determined to move?

By Ed Grabianowski