This piece was originally published in Undark and appears here as part of our Climate Desk collaboration. While working as a curatorial assistant at the American Museum of Natural History, Eli Wyman learned about a very unusual bee that was presumed to be extinct. The bee, Megachile pluto, also known as Wallace’s giant bee, is a massive unit. It is the largest bee in the world, four times larger than a honeybee and measuring about the length of a human thumb. Huge mandibles hang like dastardly garden shears from its…