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northern exposure university of washington releve false pass interception over fishery Alaska counting dead salmon tossed researchers threw on one side of a shallow creek in Alaska over 20 years now pressure have combined to investigation this situation

Alaska reaearchers are studied the behavior and diet of polar bears, inhabiting the northern coast of Alaska that are determined the bears need much more energy and food than previously thought, also scientists said: polar bears can disappear completely if humanity does not change the approach to anthropogenic factors that affect warming. Study are based on technology fixed on the neck of the animal a collar with a camera and GPS-sensors.

' influx of tropical pyrosomes off Alaska unprecedented changes in the environment,” less food for salmon and other marine species