Today, you’ll learn about a potential cure for diabetes, how ancient extinct volcanoes might provide a boost for your cell phones, and why sharks and rays fling themselves out of the water.     Stem Cells & Diabetes    “Stem cells reverse woman’s diabetes - a world first.” by Smriti Mallapaty. 2024.  “How a pioneering diabetes drug offers hope for preventing autoimmune disorders.” by Elie Dolgin. 2023.    Rare Earth Metals     “Humanity needs more rare earth elements. Extinct volcanoes could be a rich new source.” by Michael Anenburg. 2024.  “Demand for rare-earth metals is skyrocketing, so we’re creating a safer, cleaner way to recover them from old phones and laptops.” by Cristina Pozo-Gonzalo. 2021.  “Europe’s largest deposit of rare earth metals located in Kiruna area.” LKAB. 2023.    Leaping Sharks    “A review of elasmobranch breaching behavior: why do sharks and rays propel themselves out of the water into the air?” by A. Peter Klimley, et al. 2024.  “Sharks and Rays Leap Out of the Water for Many Reasons, Including Feeding, Courtship, and Communication.” by A. Peter Klimley. 2024.    Follow Curiosity Daily on your favorite podcast app to get smarter with Calli and Nate — for free! Still curious? Get exclusive science shows, nature documentaries, and more real-life entertainment on discovery+! Go to https://discoveryplus.com/curiosity to start your 7-day free trial. discovery+ is currently only available for US subscribers.  Hosted on Acast. See acast.com/privacy for more information.