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    Polar Bears & Arctic Scavengers: Food Web Impact

    Polar Bears & Arctic Scavengers: Food Web Impact

    Polar bear decline in the Arctic threatens food web. Less carrion impacts scavengers like foxes and gulls. Climate change & polar bear populations at risk. Research highlights vital role of apex predators.

    Beneficial bacteria help these marine worms survive extreme cold

    Beneficial bacteria help these marine worms survive extreme cold

    Corinaldesi’s colleagues traveled to three coastal areas of Antarctica in the Ross Sea and scooped up ocean sediment containing three common marine worm species — two that survive on scraps of dead organisms and one that is a predator.