Abyssinian cats, by the way ... but there's still a good chance you've seen (or owned) a few yourself. "Tortoiseshell cats are almost always female, as the males are exceedingly rare in the ...

Cinnamon tabby cats appear often in the Abyssinian breed ... Like non-tabby tortoiseshell cats, patched tabbies typically cannot be male due to the gene for the colors residing on the X chromosomes.