Two lion brothers rubbing heads in sign of affection and bonding© RichartPhotos/Shutterstock.com Scientists have recorded same-sex behavior across many animal groups ...

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 ...

Paw preference refers to an animal’s tendency to consistently use one paw over the other when performing tasks. It’s much like how most humans favor their right or left hand. But this isn’t just about ...