13. Contagious Yawn
On the lighter side of things, let’s just talk about yawns. Did you know that it’s not just your stalker you might catch with your infectious yawn, your dog is not safe either?
A London study has found that 72 percent of dogs catch yawns by watching a person yawn. It took about 99 seconds for the dogs to yawn after seeing a person yawn. While the reason why this happens is not known, it is definitely a cool fact to know.