Taking blood samples from polar bears involves a complex and risky process. The first step includes finding the bear and sedating it with a dart from a helicopter. A vet then approaches to place a GPS collar before taking a blood sample, requiring a delicate incision in the bear's fat layer while ensuring it remains sedated. For forty years, the Norwegian Polar Institute has monitored polar bears in Svalbard, which is experiencing rapid climate change. Researchers are also tracking PFAS chemicals in these bears, revealing pollution threats even in the Arctic.
Taking a blood sample from a polar bear involves shooting it with a sedative dart from a helicopter, approaching cautiously, and performing delicate surgeries on the ice.
For over four decades, the Norwegian Polar Institute has monitored polar bear health in Svalbard, a region facing rapid climate change impacting these apex predators.
Scientists are now tracking the presence of PFAS "forever chemicals" in polar bears, indicating environmental pollution reaching remote Arctic regions.
With wind chills of minus 30C, researchers employ careful strategies to sedate and sample polar bears in an environment that poses significant risks.
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