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.

Dogs come in all shapes and sizes, but variations in color patterns provide some of their most distinctive characteristics. A newly released study sheds light on a subset of these patterns, ...

The shaded yellow phenotype produced by mutations on the ASIP gene are seen in a collie’s coat color. Susan Larson Some breeds of dogs are prized for their unique coat colors, such as the golden ...

Cats are beautiful in so many ways, including their coat colors and patterns, of which there are many. And it isn’t just longhaired and shorthaired cats who boast a range of looks, as even hairless ...

A genetic mutation determines whether a tabby cat is a mackerel (top row) or blotched (bottom row). (Image courtesy of Helmi Flick) Tabby may be a colloquial term for a female kitty, but it’s more ...

Q: What’s the difference between a tabby and a tiger cat? Is a tabby a purebred cat? A: Tabby is not a breed, but a coat pattern common among purebreds as well as mixed-breed cats, usually referred to ...