Like torbies, the colors orange and black that make up a calico tabby’s color reside on the X chromosomes. Male calico tabbies are very rare, and when they appear, they are often sterile.

The ‘mackerel’ pattern features a dark stripe along the spine with thin vertical stripes that run down the flanks of the cat, ...

Mackerel tabby pattern is characterised by set close ... often white and some other simple color such as black, gray, or orange. They may have patterns ranging from a small percentage of white ...