Are all these cats with extra toes black and white?:confused:

That's what it seems like. I met another one at a party on July 4th. Also black and white but at least 1/3 bigger than Thor - absolutely huge. (This cat attacked at least 5 people that night, including me. Evil cat! But that's another story.)

polydactyl
 

Cats of many colors! (Some humans too.)

Google Image search for polydactyl

Or a Cellar IotD

I never forget an IotD, but I didn't realize the 25-toed cat was the same thing as the thumbed cat.

I understand humans born with extra toes and fingers with no bones in them are quite common. They just tie them off with surgical thread and they drop off in a few days. Hey, would my mother lie to me?;)