ARI SHAPIRO, HOST:
Good morning. I'm Ari Shapiro.
Violet snails may be some of the best surfers around, but how these little ocean snails developed their rafts has been a mystery - until now. Biologists have figured out that the surfing snails ascended from evolutionary relatives on the ocean floor. The surfboard evolved from the snail's egg packet. Biologist Cecilia Churchill(ph) says it's the consistency of bubble wrap. She tells National Geographic you can pop it if you get a fresh one. It's MORNING EDITION. Transcript provided by NPR, Copyright NPR.