Polar Bears Getting ‘Fatter and Healthier’ Despite So-Called Global Warming, Study Finds
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Polar bears living near Norway’s Arctic Svalbard archipelago are becoming “fatter and healthier,” new research shows, even as sea ice levels continue to decline.
For years, scientists and climate activists have warned that melting ice would reduce hunting opportunities for polar bears, leading to declining health and shrinking populations. But long-term monitoring in Svalbard tells a different story.
Researchers analyzed 1,188 records from 770 adult polar bears collected between 1992 and 2019. After a small drop in body condition during the mid-1990s, both male and female bears have shown steady increases in weight and fat reserves, signaling overall improved health.
Scientists have reported some rare good news from the Arctic. As the climate changes and the ice melts, in one region at least, polar bears are thriving — finding new ways to survive, and even packing on the pounds.
CBS News’ Vlad Duthiers breaks down the study and polar bears… pic.twitter.com/bnkZsr2Nrt
— CBS News (@CBSNews) January 29, 2026
The study, published in Scientific Reports, suggests this trend may be linked to changes in available food sources. Populations of reindeer, walruses, and harbor seals—once heavily hunted by humans—have rebounded thanks to conservation efforts, giving polar bears alternative prey. Additionally, reduced sea ice may concentrate seals into smaller areas, making hunting easier when ice is present.
Jon Aars of the Norwegian Polar Institute, a co-author of the study, called the results “unexpected” given the extent of ice loss.
fun fact about polar bears: they are one of the very few animal species that actively see humans as prey 🙂 pic.twitter.com/kNX1MzaBq5
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“The fatter a bear is, the better it is,” he said. “I would have expected to see a decline in body condition with such significant ice loss. But there are a lot more walruses around these days, and bears may be hunting seals more efficiently.”
Even though polar bears in the region now have about two months less access to sea ice each year than in the past, adult body condition has improved rather than declined. The Barents Sea region is home to roughly 2,650 polar bears, and researchers report no evidence of population decline. Mothers are successfully raising cubs, and survival rates among younger bears remain stable.
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