The Arafura filesnake gets its name from its tiny but numerous scales that give its skin the texture of a file.  This nocturnal snake spends most of its time in the water, and while it may seem counterintuitive, rough skin is an important trait to have if your diet consists entirely of slippery fish and you haven’t got any hands to catch them with.

Because the Arafura filesnake rarely comes onto land, it is a very slow slitherer.  The Aboriginal people of northern Australia (the snake lives here and in New Guinea) take advantage of this when they hunt the filesnake for its meat and extremely baggy skin.  All they have to do is feel around for this large (sometimes over 8 feet long) snake underwater, and then toss it onto the land, where it will be collected at the hunters leisure.  

Along with being a slow mover, this filesnake also has a really slow metabolism.  As a result of this, it eats less often than most other snakes, usually around once a month.  Arafura filesnakes have no problem finding food, though, since scientists think that their sharp scales contain sensory organs that can detect movement and help the snake catch fish.