...cadmium and tellurium to help fight cancer
http://arstechnica.com/science/2012/12/ ... particles/
i felt bad when i was talked into feeding some fish a couple of worms so i have trouble imagining eating them.
as an interesting note - the one worm lasted for ? at least 12 hours in the tank. it burrowed into the gravel until i rescued it the next day.
it was probably due to the fish aerator/bubbler keeping some dissolved oxygen in the water that kept that poor worm alive.
*another somewhat easier to read article about worms and medical imaging is available.