This rock-eating ‘worm’ could change the course of rivers0

• Earth Mysteries, From Around the Web
• August 14, 2019

Shipworms have long been a menace to humankind, sinking ships, undermining piers, and even eating their way through Dutch dikes in the mid-1700s. Now, researchers have found the first shipworm that eschews wood for a very different diet: rock.