Playful tension drives this collage from the first glance. On the left, a small white puppy faces a bright green crocodile ...

There's a moment, somewhere between sleep and wakefulness, when a kitten opens its mouth in a yawn so complete it looks like it might turn itself inside out. The whole face reorganizes. The eyes ...

Add Yahoo as a preferred source to see more of our stories on Google. Parade Pets and Yahoo may earn commission from links in this article. There's a moment, somewhere between sleep and wakefulness, ...

You know the feeling. It’s impossible to resist. You just need to yawn. A yawn consists of an extended gaping of the mouth followed by a more rapid closure. In mammals and birds, a long intake of ...

Bijsterbosch gives readers a chance to find out whether yawning is truly contagious as she presents bright cartoon images of 10 animals (and one young human) who are all exhibiting signs of sleepiness ...