Arctic Ocean | smithsonianmag.comhttps://www.smithsonianmag.com/rss/tag/arctic-ocean/RSS feed for Arctic OceanenWed, 08 Jul 2026 15:36:06 +0000The Arctic Ocean May Have Passed a Crucial Tipping Point That Could Harm Food Webs and Worsen Climate Changehttps://www.smithsonianmag.com/smart-news/the-arctic-ocean-may-have-passed-a-crucial-tipping-point-that-could-harm-food-webs-and-worsen-climate-change-180989083/Sea ice loss seems to have triggered a decline in the nutrient nitrate, affecting the tiny organisms that form the foundations of marine food chains and absorb atmospheric carbon dioxide, according to a new studyWed, 08 Jul 2026 15:36:06 +0000https://www.smithsonianmag.com/smart-news/the-arctic-ocean-may-have-passed-a-crucial-tipping-point-that-could-harm-food-webs-and-worsen-climate-change-180989083/Scientists Say They've Discovered 'Little Lab Zombies'—Seemingly Immortal Tissue Taken From Sea Cucumbershttps://www.smithsonianmag.com/smart-news/scientists-say-theyve-discovered-little-lab-zombies-seemingly-immortal-tissue-taken-from-sea-cucumbers-180988880/Chunks removed from the marine creatures more than three years ago haven't degraded and show signs of biological activity, raising questions about what it means to be aliveTue, 02 Jun 2026 19:56:38 +0000https://www.smithsonianmag.com/smart-news/scientists-say-theyve-discovered-little-lab-zombies-seemingly-immortal-tissue-taken-from-sea-cucumbers-180988880/