Radiolab

In this episode, we consider a creature we often don’t think much about—the snail. And not just snails, but their sex lives. Which, as it turns out, is epic. There is persuasion and subterfuge, spaghetti penises and co-copulation. And this very surprising habit—erm kink—of making tiny arrows (actually!) and stabbing each other with them. Known as a “love dart,” these limestone daggers aren’t just a strange trick of nature—they have a deep evolutionary purpose.  Special thanks to Menno Schilthuizen and Aaron Chase.EPISODE CREDITS:  Hosted by - Molly Webster Reported by - Molly Webster Produced by - Mona Madgavkar, Annie McEwen, Molly Webster Sound design contributed by - Mona Madgavkar, Annie McEwen Fact-checking by - Diane A. Kelly and Edited by  - Alex Neason EPISODE CITATIONS: Videos -  A love dart being DARTED! (https://zpr.io/rYhLwXhaxQQP)  – Molly has watched this video so many times Articles -  Changes in the reproductive system of the snail Helix aspersa caused by mucus from the love dart. (h