Wow, I never knew Pete was a cat! I always thought he was a dog-like character like Goofy. I'm just stunned. I felt this couldn't be true, but Wikipedia says, "He was originally an anthropomorphic bear but with the advent of Mickey Mouse in 1928, he was defined as a cat." I guess it makes sense that the foil for a mouse would be a cat. I mean, he was in Goof Troop and I guess PJ and the rest of the family are cats too.
He doesn't really look like a cat, though the ears could be cat-like, though dogs can have them too. Man, I think I'm going to lose some Disney nerd-cred over this.