conditions, and human interaction, all of which play a part in the development of a dog's behavior and overall welfare.

Co-evolution with humans

The origin of the domestic dog (Canis familiaris) is not clear. Whole-genome sequencing indicates that the dog, the gray wolf and the extinct Taymyr wolf diverged around the same time 27,000-40,000 years ago. How dogs became domesticated is not clear,

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