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This is one worm that you don't want to mess with even though you are only likely to see 5-8 cm of them outside their hole or above the sandy bottom. The name "Bobbit worm" was coined in the 1996 book Coral Reef Animals of the Indo-Pacific, in reference to Lorena Bobbitt, who was then very much in the public consciousness. The name is inspired only by the scissorlike jaws of the worm; the common supposition from the name that female eunicids cut off the males' penises is baseless, and the worms in fact lack penises entirely, as they are broadcast spawners. Bobbit Worm is an aquatic predatory polychaete worm dwelling at the ocean floor. An ambush predator, the animal buries its long body into an ocean bed composed of gravel, mud, or corals, where it waits 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 speed that its prey is sometimes sliced in half. They inject a toxin in their prey, which stuns or kills it, such that prey much larger than the worm itself can be eaten and digested. They can grow up to 3 meters in length although most likely around 1 meter in average length.
Sandy bottom in the shallow reefs.