Five new animal species that camouflage themselves as excrement or bark reveal some of what still remains hidden in the world ...

A tiger walks the same worn groove along the edge of its exhibit like a broken record. A parrot methodically plucks out its ...

With copper-blue blood prized by modern medicine and a body plan older than dinosaurs, the horseshoe crab reveals how ancient ...

Animals have evolved to sleep in extreme ways — for example, taking micro naps during parenting, sleeping on the wing during ...

From bold foxes to gregarious birds, animals’ personalities are increasingly being seen as crucial to conservation efforts.

Goodbye, Animal Control. Hello, Animal Services? Weeks away from relocating into a new building, the city division currently ...