Why don’t poisonous animals poison themselves? - Rebecca D. Tarvin

Have you checked out our Patreon page? https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/why-don-t-poisonous-animals-poison-themselves-rebecca-d-tarvin Thousands of animal species use toxic chemicals to defend themselves from would-be predators. Snakes have blood clotting compounds in their fangs, the bombardier beetle has corrosive liquid in its abdomen and jellyfish have venomous, harpoon-like tentacles. But how do these animals survive their own poisons? Rebecca D. Tarvin detai