Meat-eating pitcher plants were first described by science in the time of Linnaeus, but the previously discovered Nepenthes species stuck to small prey like insects and spiders -- if an unlucky mouse or bird became a meal, that was a rare treat. But the giant N. attenboroughii is a vertebrate specialist. The plant lures in the rats with the promise of sweet nectar. When the rat leans into the plant to drink the saccharine liquid, it slips on the pitcher's waxy interior, and gets stuck in the gooey sap. Once it is trapped, acid-like digestive enzymes break down the still-living rodent.