This cat belongs to my niece, who is studying to be a veterinarian...and I know she will be great, she is a natural for it.
Thumper is a special cat, with deformed front legs... I have to get more details, but the bones are ...wrong, and there is no "wrist" on one of the front legs. He is also a polydactyl, with 6 toes on the front paws and 7 on the back.
BUT the cutest kitty ever!! I love this picture.