Is Climate Change Making Iguanas Shrink? 🦎 | Evolution Earth | PBS

Official Website: https://to.pbs.org/44Cuts5 | #EvolutionEarthPBS On the Galápagos Islands, Greg Lewbart and his team are trying to catch a marine iguana. Their goal is to study the iguana’s unusual adaptation. They have evolved the ability to shrink and regrow their vertebrae in response to changes in food availability. These conditions arises when the Pacific Ocean that is home to the algae they feed on warms, a result of the weather system known as El Niño. Stream Evolution Earth on pbs.org and the PBS App: https://to.pbs.org/44Cuts5 This program is made possible by viewers like you. Support your local PBS station: https://www.pbs.org/donate Subscribe to the PBS channel for more clips:    / pbs   Enjoy full episodes of your favorite PBS shows anytime, anywhere with the free PBS App: https://to.pbs.org/2QbtzhR FOLLOW US: Facebook:   / pbs   Twitter:   / pbs   Instagram:   / pbs   TikTok:   / pbs   Shop: https://shop.pbs.org/ #iguana #galápagos Evolution Earth Traveling to the far corners of the world, discover the extraordinary ways animals are adapting to our rapidly changing planet. Witness nature’s remarkable resilience as our perception of evolution and its potential is transformed. Stream Evolution Earth on pbs.org and the PBS App: https://to.pbs.org/44Cuts5