Whether purebred or mixed breed, dogs come in a variety of colors and patterns, from dark to light, solid to spotted, and everything in between. Do you know what a brindle coat is, or what a merle ...

Jiff the collie represents “shaded yellow,” one of five coat color patterns in domestic dogs identified by Danika Bannasch at the UC Davis School of Veterinary Medicine and collaborators in the U.S.