This is absolutely frightening. There is a snake species recently discovered called the Spider Tailed Viper and it has a spider shaped growth on the bottom of its tail that it uses to lure prey. Birds and other creatures will innocently approach the “spider” thinking they are about to have a tasty meal, and then the snake strikes.

https://www.discovermagazine.com/planet-earth/meet-the-snake-that-hunts-birds-with-a-spider-on-its-tail