"Yours live on land? Oh, that's even more fascinating-- how do they even move, if they are so heavy and not helped by the water?"

"Err..." that's a good question, he hasn't thought about it before, "I suppose there are animals that are wild, and animals that are pets. These are wild animals. I honestly don't know how you got them all in here, usually they are quite wary of people, but wild animals live outside. Pets live inside, but people usually only keep one or two pets. As you can see, lots of animals kept inside make a great mess."