https://www.live-feeds.com/feed/humans-in-the-andes-seem-to-have-evolved-an-unusual-genetic-abilityContinuously updated, source-cited coverage. https://www.live-feeds.com/feed/humans-in-the-andes-seem-to-have-evolved-an-unusual-genetic-abilityhttps://www.live-feeds.com/feed/humans-in-the-andes-seem-to-have-evolved-an-unusual-genetic-ability#u176645Thu, 05 Nov 2026 06:00:53 +0000Residents of the Argentine Andes have developed a genetic adaptation allowing them to survive on arsenic-laced groundwater that would typically cause severe illness. Scientists from Uppsala University identified mutations in the AS3MT gene among locals in San Antonio de los Cobres. These variants enable more efficient arsenic metabolism, helping the body flush the toxin. The adaptation occurred over thousands of years of exposure to contaminated water sources high in the mountains. Researchers confirmed these genetic markers by swabbing 124 women in the region.Why it mattersArsenic is a potent