(colloquially known as the Bobbit(t) worm), is an aquatic predatory polychaete worm dwelling at the ocean floor.
This organism buries its long body into an ocean bed composed of gravel, mud, or corals, where it waits patiently for a stimulus to one of its five antennae, attacking when it senses prey.
Armed with sharp teeth, it is known to attack with such speeds, its prey is sometimes sliced in half.
More info: http://en.wikipedia.org/wiki/Eunice_aphroditois
Gif via +Panah Rad #biology #animals #predator