This yawn exchange between a man and his dog is more than just adorable. Inter-species contagious yawning is actually a sign that animals, like dogs, might be able to empathize with us. Is your dog really your best friend? Try yawning next to your pooch and see what happens.
Man yawns, dog yawns. Dog yawns, you yawn. You yawn, your friend yawns. It never ends!