Do you know someone who spends a long time yawning? He may not be lazy he may just have a big, neuron-rich brain. A new study published this week in Biology Letters found the amount of time it takes ...

Yawning doesn't mean you're bored, it just means you've got one big, hot brain in your head, according to a study published Tuesday in Biology Letters. The Atlantic reports that researcher Andrew ...

The other day I woke up, stretched, yawned, and wondered: Do all beasts, large and small, stretch and yawn? What about rhinos, hippos, ants, or even the wee little ...

When I interviewed Andrew Gallup, I yawned five times in the space of half an hour. That wasn’t because he was boring. It was because he studies yawning—and not just in humans, either. Gallup, a ...

My dog is a big yawner. The very first time I picked him up when he was a puppy, he was a yawning, bundle of squirm. (You can see his photo from those yawny puppy years below.) It's two years later, ...

Studies suggest that our ability to yawn — and that of chimps, dogs and even baboons — relates to our ability to show empathy. Now, a new study on wolves suggests that it’s more common in animals than ...

Researchers believe the yawning robot may have triggered some biological mechanism in the chimps that they associated with sleep. Image: Popular Science composite, Getty Images/ RMJM, Aline ...

Dogs can catch yawns from humans, regardless of whether they are familiar with the person, according to a study. The authors of the paper say their findings question the idea that contagious yawning ...

Bears do it; bats do it. So do guinea pigs, dogs and humans. They all yawn. It's a common animal behavior, but one that is something of a mystery. There's still no consensus on the purpose of a yawn, ...