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!








YESSSSS
Nearly yawned
Can’t believe I didn’t yawn but the pictures were really cute!
The leopard yawn!!! <3 So sweet, looks like he’s barfing. Lol
I did not yawn, and I think the baby snow monkey was so cute!
The yawning lion is so cute, he made me yawn!
I yawned after
The baby monkey was so cute and I did not feel sleepy!
I yawned like, 3 times! It didn’t work on my dad though
Nea tomato
Those animals were so funny but they didn’t make me yawn!