TIL: How Chameleons Change Color | Today I Learned

New research suggests that the way chameleons change color is very different from what scientists had assumed. In this week’s “Today I Learned“ filmmaker and National Geographic Grantee Jason Jaacks explains that the color change is controlled by nanocrystals in a top layer of the lizards' skin. ➡ Subscribe: ➡ Watch All Today I Learned Clips here: ➡ Get More TIL (Today I Learned): About TIL (Today I Learned): Love crazy facts? We do too. Get ready to amaze your friends with some of the strangest facts you’ve ever heard. National Geographic explorers tell you new, obscure, and amazing things about the world (and beyond). Get More National Geographic: Official Site: Facebook: Twitter: Instagram: About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure.