It's not only humans that do some sketchy, questionable stuff. Animals in the wild have their own peculiarities, too, and these weird animal behaviors usually don't go unnoticed. And by weird, we ...

The strange dog behavior called cobbing has fascinated veterinarians and animal behavior experts for years. Far from random, ...

A tiger walks the same worn groove along the edge of its exhibit like a broken record. A parrot methodically plucks out its own feathers until bare skin shows through. To a casual visitor, these can ...