The worms unfurl this proboscis to reveal a set of jaws almost 3 inches (7 cm) wide complete with large, sharp teeth, according to Australian Geographic. We don't know exactly what they eat ...

“[I] can cut a 1 cm worm into multiple pieces, and each piece, regardless of where in the animal it was taken from, will make a whole new animal in just 14 days,” she says in an email to The Scientist ...