Wildlife

Oliver: (pointing to a boulder on someone's lawn) What's that?
Me: That's a rock.
Oliver: Actually it's a kind of animal. It has sharp teeth.
Me: Is it asleep now?
Oliver: Yeah. It comes out at night.
Me: Really? What kind of animal is it?
Oliver: Um, it's a camel. It has one hump and two humps and three humps and four humps and no humps.