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Stanford Medicine researchers discover mechanisms of sex-linked genetic mutation giving rise to ginger felines.

But on occasion, you'll find a cat on the Internet who is so stunning and unusual looking, you can't help but gawk in awe at ...

The existence of orange cats dates back to at least the 12th century, but scientists have only had theories that a sex-linked ...

Researchers identified an unusual genetic mutation in orange domestic cats that has not been found in any other animal, ...

The Devon Rex is one of the friendliest cat breeds around. Wide-eyed with excitement most of the time, these kitties, which ...

Researchers had previously assumed that the mutation would be on the X chromosome because of the skewed sex ratio — it also ...

Any male cat with the mutation dubbed “sex-linked orange” will be entirely orange due to a random deletion of a section of its DNA in the X chromosome. However, a female cat needs to inherit the ...

Lots of mammals come in shades of orange — think tigers, golden retrievers, orangutans and red-headed humans — but only in ... Centuries ago, the rare orange, calico or tortoiseshell cat may have ...

The deletion appears to shift pigment production from eumelanin (black-brown) to pheomelanin (orange-red). Evidence suggests this gene undergoes random X chromosome inactivation in female cats, ...