Here are some other examples - http://messybeast.com/mosaicism3.htm http://messybeast.com/mosaicism3.htm Francisco is the example I picked since he's likely th

Here are some other examples - http://messybeast.com/mosaicism3.htm http://messybeast.com/mosaicism3.htm Francisco is the example I picked since he's likely the most well known of tortoiseshell (supposedly) male cats. I suspect that some of the claims that he's female is based on a lack of knowledge of Klinefelter's syndrome.