Animal Facts

Learn about some of the strange and unusual facts and terms in the animal kingdom.

Not all animals have red blood flowing through their veins. Meet some our blue-blooded, green-blooded and, yes, transparent-blooded fellow creatures.

Many of us admittedly keep our televisions on when we leave the house — for our dogs. But does Fido really watch the TV?

Check your chicken's earlobes (yes!) to know what color eggs you'll get.

Animals leave their marks on the ecosystem in ways you probably never imagined.

The common shrew takes some pretty drastic measures to survive winter.

Connecticut new "Desmond's Law" is the first in the nation that appoints legal advocates in animal abuse cases.

Mummified seals. Skeletal penguins. Massive whale bones. Antarctica is a weird and wonderful place.

What do mammals have in common? We're warm-blooded. We feed their young with milk. And we all take the same amount of time to defecate.

Do non-human animals have equivalent categories to our A, B and O blood designations? Can animals donate blood?

The Beagle Brigade is an important part of U.S. Customs and Border Protection. The dogs are trained to sniff out fruits, foods and plants in international passengers' luggage as they arrive in the airport terminals.

Twins pandas born at Zoo Atlanta were sent to China and are reportedly having a hard time adjusting. But is that culture shock or something else?

Whether through biology or behavior, nonhuman animals have to avoid sun damage just like we do.

Pets might have more to do with a child's psychological well-being than previously thought, and moreso than even their brothers and sisters.

No, a tardigrade's not a type of time-traveling police box on "Doctor Who." It's an ancient water bear, of course!

From musicians to politicians, a bunch of famous folks can now say they have entire species named in their honor.

The toughest animal in the world has just released its first sex tape, and as with all things water bear, things get pretty freaky.

A new tool helps visualize how a changing climate will force animal species to relocate.

There's little we can imagine that Mother Nature hasn't already dreamed up in one of her fouler moods. Care to meet some creatures with frightful features?

There's no way humans will outlive the tardigrade, but we might be able to steal some of its powers while we have the chance.

If you think there's one easy explanation behind this cute canine behavior, think again.

But how do you diagnose a pet's mental state when it can't talk to you?

Hate to say it, but some animals have jobs that are far more interesting — and more lucrative — than yours. Who are these lucky dogs?

The Hydra is a fearsome, tiny predator that stings and swallows its prey — through a mouth it had to rip its own skin to create. But how does it do that?

The only thing we have to fear is fear itself, said FDR, but he wasn't a biologist. Scientists examined what impact the fear of apex predators can have on an ecosystem.

Don't worry about transmitting the cold or flu to your furry friends. In fact, some time cuddled up can help with your sickness.