Our Absurd Creatures series is back, baby! And what is this? The most terrifying creature in the sea, the bobbit worm? It's 10 feet long and is pretty much the graboid from Tremors only, you know, actually out there in the world. So enjoy the show—and never go in the ocean ever again.

Have a critter you want me to cover? You can get me at matthew_simon@wired.com or on Twitter at @mrMattSimon. And check out the Absurd Creature of the Week column right here.