Science magazine shows tabby cats with the "mackerel" pattern, top row, and blotched pattern, bottom row. Scientists say they've found the gene that sets the common tabby pattern — stripes or blotches. Cats with narrow stripes, the so-called mackerel pattern, have a working copy of the gene. But if a mutation turns the gene off, the cat ends up with the blotchy "classic'' pattern, researchers reported online on Sept. 20 in the journal Science.
Science via AP