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    • The last woolly mammoths offer new clues to why the species went extinct

    The last woolly mammoths offer new clues to why the species went extinct

    Due to challenges obtaining high-quality DNA, the team was not able to analyze the genetic condition of the Wrangel Island population during their final 300 years, roughly five generations, says study coauthor Marianne Dehasque, also of the Centre for Palaeogenetics.

    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.