We've all heard about the platypus - that handsome part mammal, part duck creature that was thought to be an elaborate hoax when it was first found? Well, we expect only great travesties from Australia.
But did you know, there is only one other semi-aquatic Australian mammal? Upon discovering it, English naturalists had probably already run out of names to give Australia's ridiculous fauna and so they went with something simple - a water rat.
My guess is, either you've never heard of the water rat, or never thought that there would be anything interesting to know about it. Before you think this is just a rat that likes to swim, let me hit you with a few facts first.
It's a tiny but menacing predator