Learn about some of the strange and unusual facts and terms in the animal kingdom.
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.
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.
Will we witness personhood for other animals in our lifetime? It's not out of the question, thanks to a recent court decision.
In times of strife and conflict, it's good to remember that differences are OK. Here's a dose of adorable: nine interspecies interactions that didn't end up in a meal.
No matter what your imagination can cook up, real life is weirder. Whether it's parasitic wasps or super-controlling ferns, reproduction can be mysterious, gross or even scary.
Picture a herd of hundreds of horses fleeing a burning forest and running headlong into a wintery lake, which quickly flash-freezes the whole lot of them. Sounds pretty gruesome — and flat-out unbelievable. But did it actually happen? Could it?
Researchers have investigated whether animals are capable of making a unique sound in response to joy.
Just how big do animals come? Dive backward through time and the fossil record in search of the most colossal member of kingdom Animalia.
Ever wonder why some birds end up following a mother of another species? It has a lot to do with who (or what) is around when they hatch. So maybe keep your distance the next time you spot a nest.
Join HowStuffWork's Robert Lamb as he visits Zoo Atlanta's new Scaly Slimy Spectacular home for reptiles and amphibians.
They're found in stupendous numbers, they don't take up much lab space and they have an awful lot to teach us about the world and its residents. Meet 10 of the insects we just can't stop studying.
Why Is the U.S. Dollar the World's Currency?
April 2, 2020