A strange and mesmerizing marine worm has recently gone viral online, and once you see it, you’ll understand why. This ...

Deep-sea worms feast on the teeth of dead sharks that fall to the seafloor. These worms were previously known to eat whale bones and the remains of bony fish, but when those are scarce, shark teeth ...

About 500 million years ago, the Grand Canyon was a great sea, and among the creatures it harbored was a newly discovered type of penis worm, armed with many rings of teeth. Penis worms are marine ...