For quite some time, scientists had a working theory of why certain piebald (patchy black-and-white ... mice, cats, and horses—got their color patterns in utero. In developed skin, pigment ...

And it’s the same gene that turns a mackerel-striped tabby cat into ... and black zones of a cheetah’s skin. His search yielded 60 genes that were more active in the black spots, and one ...