“The idea that dogs were domesticated from jackals was long ago discarded in favor of the notion that dogs descend from the gray wolf, Canis lupus, the largest member of the Canidae family, which includes foxes and coyotes. While no scholars seriously dispute this basic fact of ancestry, biologists, archaeologists, and just about anyone interested in the history of dogs still debate when, where, and how gray wolves first evolved into the animal that is the ancestor of all dog breeds, from Neapolitan mastiffs to dachshunds. Were the first dogs domesticated in China, the Near East, or possibly Africa? Were they first bred for food, companionship, or their hunting abilities? The answers are important, since dogs were the first animals to be domesticated and likely played a critical role in the Neolithic revolution.”