Scientists have found an ancient sea worm with jaws made from a mysterious ‘bio-metal’ never encountered before, a discovery that could rewrite what we know about nature
Imagine you’re playing “20 Questions” and you start with the classic opener: “Animal, vegetable, or mineral?” Most of the time, a sea worm would be an easy answer: animal. But one particular marine species, the ancient and still-living bristle worm Perinereis cultrifera, complicates that simple choice.This worm is a predator, and it hunts with jaws…