NIH Dog Genome Project

A Family Tree for Dogs Reveals How Different Breeds Emerged Around the World

The most comprehensive evolutionary tree of dogs could help improve canine health — as well as our own.

Published On 04/25/2017
12:44 PM EDT
This photograph shows a toy xoloitzcuintlel, a dog breed that likely descended from dogs that crossed the Bering Land Bridge with Native Americans ancestors. | Penny Inman
This evolutionary tree shows the relationships between dog breeds. | NIH Dog Genome Project