12 Reasons Why Dogs Are Man's Best Friend

Dogs and people began living together 15,000 years ago when dogs followed people’s migration throughout East Asia. The connection was natural because both people and dogs are social beings. Neither can thrive when alone, and both benefit mentally (and often physically) from strong social bonds. Though domestic dogs share 99% of their DNA with wolves, dogs exude warmth to other dogs and humans that contrasts greatly with a wolf’s skeptical and defensive reaction to others.