Wingless Fly Penicillidia That Attaches To Bats' Heads And Never Leaves Its Body Not everything in nature is as beautiful or as hilarious as we're mostly used to. It has a dark side, too, and I'll completely understand if this list forces you to build a pillow-fort in your living room and avoid going outside for a week. From a mama centipede protecting its babies to a wasp colony building a nest around a discarded doll, these pictures feature some of the scariest things Mother Earth has to offer. Scroll down to test how brave you are.