@p @ForbiddenDreamer they perpetually breed. So a female can carry a Joey in her pouch while it's learning to eat grass, while a new baby could be drinking milk inside the pouch.

It's the males you have to watch out for, they will box you on their hind legs or front kick the fuck out of you.

I've got eastern grey's which are smaller than red kangaroos. Some reds can get over 6ft in height on hind legs and tail.