Make sure you don’t scroll down to the photos below unless you have a pillow and a blanket ready for a nap. These images will make you sleeepppy.
A few years ago, a bunch of researchers sat next to 33 chimpanzees and started yawning a lot. Guess what the chimpanzees did? They yawned back! They helped prove what we’ve all known for a long time: yawning is contagious!
The researchers made a lot of chimps look pretty sleepy, but no word yet if there was an increase in nap time for both researchers and chimpanzees.

If we can make chimpanzees yawn, can animals make us yawn? Scroll through these pictures and let us know if feel a yawn coming on!








The Baby Monkey is sooooo cute!
Wow made me yawn a few but needs more pictures I want help falling asleep!
Those pictures are so cute!!!! <3
cool!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! that actually made me yawn!!!!!!!!!!!!!!!!!!!!
I think all the anmals r supper cuuuuuuuuuuute!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
By Vittoria
haha this is very funny. I love it!
I think all the animals are super cute!!! (espeshally the cheetah!)
These animal yawns look scary to some kids but they are sooooooo cute to me!!!!!!!!!!!!!!!
wow! That is really cool. I bet I could catch one yawning.LOL
The pictures made me yawn