Yes, PayItForward he is a wild animal. I never thought about it before but are opposums strictly North American? I'll have to do some research on that!
He is the size of a medium cat and weighs some where around 10 pounds I would guess. They are scavengers and will eat most anything! Cat food seems to be one of his favorites!
They are similar to a very large rat with no hair on there tails and they carry their young on their backs when they leave the pouch. If they get scared they roll over and play dead. They are not well liked by many people, but I have never had any problem with this guy. He just fits right in!!