¿Te has preguntado que hacen las ranas venenosas para no morirse con sus propias toxinas? Rebecca Tarvin, profesora e investigadora de la Universidad de Cali...
Poison frogs resist the effects of their own poisons by tweaking the structure of some proteins that send signals to their brain. But this strategy isn't foolproof, new research shows. Read more: https://www.sciencenews.org/article/way-poison-frogs-keep-poisoning-themselves-complicated Story Laurel Hamers Production Helen Thompson Video & stills Rebecca Tarvin Cecilia Borghese/UCSF Chimera Music "Bouncing" by Blue Dot Sessions http://freemusicarchive.org/music/Blue_Dot_Sessions/Intent/Bouncing (CC BY-NC 4.0) https://creativecommons.org/licenses/by-nc/4.0/ Citation R.
Why don't poisonous animals poison themselves? Learn how poisonous frogs evolved genetic resistance to their own toxins, and why you should never, ever touch...
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 predators. Snakes have blood clotting compounds in their fangs, the bombardier beetle has corrosive liquid in its abdomen and jellyfish have venomous, harpoon-like structures in their tentacles.