Duck-billed Platypus

The duck-billed platypus is an amazingly good swimmer, but probably just because it has webbed feet. Now this creature does not have five senses. It has sixth sense called electro-reception. You see they have these tiny little bumps on their snout and that is what they use for electro-sensing.  Now here is why they use it: when they dive, their eyes, noise and ears are shut which leaves them with their three last senses. Its last senses are electro-reception, touch and taste. And the platypus eats pretty much crayfish.

(photo from gentlefootprintsanimalanthology.blogspot.com)