Mixing between Neanderthals and Homo sapiens lasted less than 7,000 years — a remarkably short time on evolutionary scale. Plus, Ozempic shows benefits for kidney disease and how researchers in remote regions handle the isolation. Mixing between Neanderthals and Homo sapiens lasted less than 7,000 years — a remarkably short time on evolutionary scale. Plus, Ozempic shows benefits for kidney disease and how researchers in remote regions handle the isolation.