There are. Mostly ducks, though I have also met a rooster and a small creature calling himself a... A erm... [ Scratches his head... ] Well, it probably wouldn't be found on Earth, that's for sure.

[ What the heck do you call those small furry things again? It starts with an "F". ]

Ah, yes. That. Appearing out of nowhere sounds like something a Cheshire Cat would do. The chasing, though... Less expected.