A computer might have just predicted who will survive in “Game of Thrones.” Researchers have figured out how tiny, mouthless hydras use wounds to eat prey. Plus, it’s been 30 years since the Chernobyl disaster, and local wildlife is thriving despite the radiation. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.