This zombie snail. A parasitic worm Leucochloridium has taken over its motor functions and eye stalks, making them into caterpillar mimics so birds will eat them. The worm can then reproduce in the bird's GI tract, eventually transmitting via its faeces 🤯 https://t.co/mP8IrGh21L pic.twitter.com/C2xc83oU54

— Mike Inouye (@minouye271) August 12, 2019