18. Kangaroos
Source: Iconosquare
They may seem friendly, but like the Cassowary, these Australian icons can deliver a powerful kick with their hind legs. If that isn’t enough to stop you trying to get cozy with one, its upper arms are also good for giving you a thrashing. They are able to punch like a human, kick like a Cassowary, and can hop at speeds approaching 30mph. If you get on their bad side, you’d best have done it from inside a closed vehicle- which by the way- you can expect to get kicked in thoroughly.