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Scientists strap cameras on Polar Bears to track behavioral changes in ice-free world
Scientists in Alaska find declining Arctic sea ice is increasing polar bear land use after conducting study that tracks them with cameras strapped to their collars. Anthony Pagana, Research Wildlife Biologist at the United States Geological Survey, tells CNN's Kim Brunhuber that polar bears are at risk of starvation because of climate change.
05:34 - Source: CNN
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