Does your dog yawn when you yawn? Probably. You see, according to new research published in the upcoming November edition of Animal Cognition, by Lund University in Sweden, yawning is contagious – not just for other humans but for your dog too. If your dog is older than 7 months, that is. Apparently younger dogs are immune to yawn contagion. Researchers haven’t quite figured that out yet, but research suggests that it may be related to empathy.