Why do dogs circle three times before chewing a bone?

Canine circling behavior probably developed when dogs were living in the wild. Eating and sleeping are two activities that leave an animal vulnerable to attack; therefore, before feeding or lying down, a canine circles up to three times to check for possible rivals or assailants. Even housepets with few to no threats exhibit this behavior because it is instinctual, "hard-wired" into the animal.