European Tree Frog (Hyla arborea) yawning on a Bramble (Rubus sp.) bush in the forest in Noord Brabant in the Netherlands© Henk Bogaard/Shutterstock.com You know the feeling. It’s getting close to ...

Humans aren't alone when it comes to yawning — all vertebrates do it too, including fish, amphibians, reptiles, birds and mammals. But why? The "evolutionarily ancient" act of yawning likely serves a ...

Ever "caught" a yawn after someone nearby yawned? As it turns out, humans aren't the only animals that are contagious to yawning. Not only do animals yawn, many animal species, and interestingly ...

Teachers might have told you off for doing it, and your parents used it to try to get you to go to bed earlier. It’s rude to do it in a meeting, and seeing someone else doing it (even if they cover ...

After moving to the forest close to the person who rescued him, Chico the sloth loves to come back to rest in the hammock and receive affection.

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

Johanna Simkin does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Yawning isn’t just a deep breath indicating tiredness or boredom, but a process that reorganises the flow of fluids out of the brain, according to MRI scans that also suggest we each yawn in a ...

Chimpanzees (Pan troglodytes) can ‘catch’ yawns from an android imitating human facial expressions, according to new research from City St George’s, University of London. The study, published in ...