Learn about some of the strange and unusual facts and terms in the animal kingdom.
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.
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.
Marine biologists have discovered a lot about the ocean's residents while you were busy dozing on the beach. We've dug up 10 of their coolest discoveries.
The pink hippo milk myth is the ultimate lesson for those who believe everything they read on the Web.
Fancy yourself a modern-day Jonah? Keep in mind that this most famous of whale tales never scientifically considers if a whale has ever really swallowed someone alive.
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