Polydactls also known as The Hemingway Cats

Most cats have four toes on their back paws and five toes on their front paws.  Exceptional cats can have six toes, or more rarely, seven toes on each paw, making 28 toes.

Ernest Hemingway had more than 50 cats at his Florida home, about half of which were polydactls, cats born with extra toes.

The word is Greek in origin, "poly" meaning "many" and "dactylos" meaning "digits."

Polydactls were popular on boats with fishermen.  With their extra toes, they had a better grip on the deck if the sea turned rough.