Selecting for different traits over hundreds of years of breeding has caused different dog breeds to have distinctive characteristics. (Dog breeds from left to right: top row- Alaskan Malamute, Basset Hound, Llasa Apsa; middle row- Beagle puppy, Shar Pei, Chow; bottom row- Pekinese, Tibetan Terrier, Pug.)
Corel