Barking, among several other things, separates dogs from wolves, and perhaps played a major role in how we got to the man’s best friend we know and love. Barking as an early warning system would have been invaluable to ancient man, and they would have shown preference, knowingly or not, for puppies who barked the most enthusiastically at intruders. In exchange, they would have allowed the pups to live off the bones and scraps of carcass that were unusable for human consumption. The older theory, that wolves were domesticated to aid in the hunt alongside humans, is less likely, as humans would have already become more skilled in the hunt than wolves. New theories have emerged that say that as a result of humans making settlements and agriculture,