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 ...

Male rain frogs can vary from approximately ... This may have something to do with their yawning. Let’s learn more. Yawning ...

Bournemouth University neuropsychologist Simon Thompson is an expert on yawning. In 2011, he posited that high levels of the stress hormone cortisol may be a direct cause of yawning. “We believe that ...

Yawning Man, the legendary experimental desert-rock trio, release a new video for their song Macedonian Lines.