Yes, Hermione's pet Crookshanks is part-kneazle. He had mixed parentage as one of his parents was a cat while the other was a kneazle. It is very common for kneazles to breed with cats as they are similar in many respects. Crookshanks was part kneazle and therefore had impeccable skills like being able to spot Scabbers for who he really was, an Animagus form of Peter Pettigrew.