Sept. 20, 2012
This undated photo made available by Science magazine shows tabby cats with the mackerel pattern, top row, and blotched pattern, bottom row. Scientists say they have found the gene that sets the common tabby patterns. Cats with narrow stripes, the 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.
Science via AP