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  1. Life

    Sea otters stay warm thanks to leaky mitochondria in their muscles

    For the smallest mammal in the ocean, staying warm is a challenge. Now, scientists have figured out how the animals keep themselves toasty.

    By Jaime Chambers
  2. Plants

    How Romanesco cauliflower forms its spiraling fractals

    By tweaking just three genes in a common lab plant, scientists have discovered the mechanism responsible for one of nature’s most impressive fractals.

    By Nikk Ogasa
  3. Health & Medicine

    How your DNA may affect whether you get COVID-19 or become gravely ill

    A study of 45,000 people links 13 genetic variants to higher COVID-19 risks, including a link between blood type and infection and a newfound tie between FOXP4 and severe disease.