New studies of canine genetics shed light on the diversity of dogs and our longstanding, still-evolving relationship to them.

Dogs were the first of any species that people domesticated, and they have been a constant part of human life for millennia.

Greenlandic sled dogs, also known as Qimmit, play while resting. Markus Trienke via Wikimedia Commons under CC-BY-SA-2.0 Man’s best friend has been our faithful companion for thousands of years.

While dogs and cats are genetically unrelated, breeding for certain features is making some dog and cat breeds look more and more alike. Preferred features include a flat face and huge eyes, which is ...