Australian fauna were created by The Evolutionary Process in it's garden shed on a day of whimsical experimentation. Wombats are cool, and eat slugs and stuff. I want one.

Koalas are soooo sleepy. It's such hard work chewing all day long.

Kangaroos were adapted from an earlier design for a fierce, large dinosaur with little wiggly arms combined with an experimental approach to locomotion and child-rearing.