The wolf DNA isn't left over from when dogs and wolves diverged; instead, it most likely came from interbreeding in the past ...

In the animal kingdom, penises can be spiked, split, corkscrewed – even detachable. They’re one of the most diverse ...

If you've seen any of the "Ice Age" animated Disney movies, we have some bad news: You don't know the real ice age.

Modern Chileans are significantly taller and have larger heads than their ancestors. That's the central finding of new ...

Archaeologists excavating a remote island cave have found unexpected evidence that ancient humans hunted with partially ...