Do you you have a cat by chance?  I have a Siamese.
Yes, I do. My cat is a great companion because she helps hunt small vermin around my yard.
What kind of cat?  Does she leave the captured vermin on the doorstep or does she eat them?
She is a polydactyl cat, though she's a mixed breed. She loves to eat the small vermin she finds.
What's a polydactyl cat?
It's a cat with a physical anomoly that gives them an extra toe on their paws. So it looks like they have thumbs. Their paws look like mittens. 
Wow!  Like a person with six finger!
. Some cases of polydactyly are caused by mutations in the ZRS, a genetic enhancer that regulates expression of the Sonic Hedgehog (Shh) gene in the limb. The SHH protein is an important signalling molecule involved in patterning of many body elements, including limbs and digits.
Normal cats have a total of 18 toes, with five toes on each fore paw, and four toes on each hind paw; polydactyl cats may have as many as nine digits on their front and/or hind paws. Both Jake, a Canadian polydactyl
of the Cat", an early and unsuccessful attempt to appeal to female superhero comic readers. Fite was selected because Marvel's editorial staff thought a series targeted toward female readers should have a female creative team.
Fite has said that she found the character unappealing: "I thought, 'A cat? Oh, my God, how original. We’ll have a woman and we’ll call her Cat and she can be in catfights.' But I was just happy to have the chance to do it."