I am all for pets too! I like some of the ideas posted above - farm life, sugar gliders, the possibility of being a vet, cowplants and cows having a relationship, and another thing, I think it would be cool to have some wacky surrealistic biological possibilities - like egg laying cats, flying platypodes, singing foxes, plants "giving birth" to animals (think Cabbage Patch Kids! but less gruesome please). The possibility of taming wildlife (wolves, foxes, rabbits, eagles) would also be awesome.