Ever “caught” a yawn after someone nearby yawned? As it turns out, humans aren’t the only animals that are contagious to ...

It’s your body’s way of keeping you awake, if only briefly. But what about other animals yawning? In the video above, a cute little rain frog looks ready for bed. It yawns big, but it’s not ...

Seeing or hearing someone yawn can make you yawn. This phenomenon is not limited to humans; some animals experience contagious yawning, too. But why is yawning contagious? Brain cells called ...

Yawning has also been seen in monkeys, birds, frogs and other species. Those animals are believed to yawn to inhale oxygen that reaches their brains and to chase away drowsiness. Dolphins and ...

A study found that dogs yawned about twice as often after watching yawns from people they were familiar with than from ...