This hairy little beast is called (as it very well should be) a Hairy Crab (Pilumnus vespertilio).  So what exactly do those hairs come in handy for?  The hairs trap sediments allowing the crab to blend perfectly with its surroundings. When ‘fluffed’ in the water, this also helps to break up the crab’s actual outline so that predators can’t really tell where the seaweed-like hair starts and the crab begins. They reach anywhere between 3-5cm in length and are found in Indo-Pacific Oceans.


Page 1 of 1