Patricia Princehouse , director of the evolutionary biology program at Case Western Reserve University, wants to know how we got man’s best friend, dogs, from wolves. “ There is an extraordinary amount of variation present in, you know, Canis domesticus. You don’t find that in any other domesticated breed, so it’s not just something that we’ve brought to dogs, ” Princehouse says. “ There’s something about the genome of dogs. ” Most dog breeds are descended from the gray wolf, whom humans met