In some orchids, photosynthesis is out and parasitism is in. Instead of making food from sunlight, some of these plants have become parasitic and primarily suck nutrients out of the fungi in their roots. Whether these orchids change their feeding method when they can’t get enough nutrients through photosynthesis alone or if they actually get more nutritional benefits from the parasitism has eluded scientists. New research into the orchid Oreorchis patens shows that it might be the opportunity and not necessity that is driving them. The findings are detailed in a study published February 19 in The Plant Journal.