The Best Predator Defense of All Time: Marine Invertebrate Shells

This 12-minute SciShow video explores the remarkable defensive adaptations of marine invertebrates, focusing on ammonites and their incredibly tough shells. Discover how these ancient creatures developed one of nature's most effective protection systems through an evolutionary arms race. Learn why sea shells represent a pinnacle of defensive evolution, capable of withstanding attacks from formidable predators like mosasaurs. Hosted by Stefan Chin, the video delves into the fascinating science behind how soft-bodied animals evolved extraordinary defenses to survive in a dangerous marine environment.