People have a certain funny fondness for carnivorous plants: pitcher plants, venus fly traps, sundews (maybe my favorite), Audrey II, bladderworts, and so on. They are among the favorites of visitors to our glasshouse. These are all green plants, and therefore photosynthetic autotrophs, but they live in nutrient poor environments, so the prey they capture, mostly insects, provide those nutrients. HT to AoB blog for pointing out this review of the biology of carnivorous plants. And so we feed your curiosity.