Dogs were first domesticated between 20,000 to 40,000 years ago, there is a mystery as to how ‘dogs made the change from wild carnivores to loving companions’ reports the Daily Mail . Among the theories, for this complex process, are that wolves scavenged near human settlements and this led them to become domesticated. Then there is the view that wolves and men hunted together and during this, they formed a symbiotic relationship. Over time, the less aggressive and sociable wolves evolved into something like modern dogs.