Ripkin, on the right, can't put his cigarette down even for a minute.

This is just a little comparative doodle I did some time ago. The skeleton on the right is pretty basic stuff, something that can be found from any cat owner's guide. I'm not very good in biology, but I spent a while wondering how Ripkin's hips are supposed to work. His spine is bendy and he walks in a little bit hunched position, balancing his movement with his long tail.