The Domestication of Dogs

Evidence suggests that humans domesticated dogs almost 30,000 years ago. Where did your dog come from?

From the 80-kilogram Great Dane to the 1-kilogram tiny teacup poodle, there seems to be a dog for everyone. Now, the largest genetic analysis to date has figured out how those breeds came to be, which ones are really closely related, and what makes some dogs more susceptible to certain diseases.