A parasitic worm has turned this snail into a "zombie" that mimics caterpillars to be eaten by a bird, where it can reproduce inside its GI tract. (It's called Leucochloridium, and it's a parasitic worm that invades a snail's eyestalks, where it pulsates to imitate a caterpillar (in biology circles this is known as aggressive mimicry—an organism pretending to be another to lure prey or get itself eaten). via twitter: Fascinating @fasc1nate | Roar Wildlife News