You can’t get any more metal than carnivorous plants. You wouldn’t expect a piece of vegetation to bite back, but here we are, fascinated by how a piece of botanical wonder is eating a house fly. Well, that’s not the only thing it bites.
Carnivorous plants are also a great argument to shut down obnoxious dietary preachers when they overstep the boundaries of common decency and start judging folks over their non-vegan ways.