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 natural world is wildly diverse, filled with thousands of animal species, each flaunting its own bizarre quirks. And, as a playful twist on that famous Animal Farm quote goes: all animals are ...

I've studied various aspects of play behavior in a wide variety of nonhuman animals (animals) for decades, focusing mostly on members of the "dog family" (canids), while some of my students have ...

There could be a turtle eclipse of the heart. Monday’s much-anticipated solar eclipse could cause critters to act kookier than normal, scientists say. During the Great Solar Eclipse of 2017, ...

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 ...

A little past 11 a.m. on Monday, the moon covered more than half of the sun as the solar eclipse neared its peak. The trees' shadows projected lights on the ground at the Phoenix Zoo in the shape of ...