Bloodworms will eat anything that passes by them and fits in their mouths. To catch prey, they evert (turn inside out) part of their digestive system, which includes their teeth, and launch it out of their mouth.

Do bloodworms have copper teeth?

A GRUESOME alien-like creature with METAL teeth dubbed the bloodworm has spooked wildlife fans. With fangs made of a copper-based mineral, the venomous marine worm is a popular bait for seawater fishing.

Do bloodworms have blood?

Well, the short answer to your question is: yes. Many worms do have blood, and it is either colourless or pink, or red, or even green!