From tool-using chimpanzees to puzzle-solving capuchins, the primate world is packed with surprising brainpower. But how do the planet’s cleverest monkeys and apes really compare with human intelligen ...

The platypus is one of nature’s strangest mammals. This egg-laying animal sweats milk, hunts by sensing electrical signals, carries venomous spurs, and even glows under ultraviolet light. Discover the ...

Advocates say commercial alligator farming has helped preserve a species often seen as scary, bothersome or good only for their skins. Not all conservationists think that’s a good thing, but for the ...

Nevertheless he imagined gradation from simple-eyed animals with pigment-coated nerves to ones with eyes of a “high stage of perfection”, such as our own. 11 weirdest, bizarre ...