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!








I don’t no yawn. The animals look very sleepy
I yawned once and it made me pretty tired. My favorite animal is also a dog!
I did not get sleepy at all •
I love the earth rangers app makes me feel so happy now I can suppress myself I love animals and I love saving them.
I’m yawning
I did not yawn………..well maybe I did.
I didn’t get it on but the animals were cute
I yawed when I saw the fox image and the Japanese snow monkey image.
soooooooooooo sleepy
So cute