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  1. Tech

    50 years ago, lambs survived but didn’t thrive inside artificial wombs

    Artificial wombs to support preemie babies are closer to reality.

    By Maria Temming
  2. Animals

    A deadly fungus gives ‘zombie’ ants a case of lockjaw

    Clues left on infected ant jaws may reveal how the ‘zombie-ant-fungus’ contracts ant muscles to make their death grip.

    By Carolyn Wilke
  3. Health & Medicine

    WHO declares a public health emergency over Congo’s Ebola outbreak

    The yearlong Ebola outbreak in the Congo has been declared a public health emergency by the World Health Organization.

    By Aimee Cunningham
  4. Ecosystems

    Planting trees could buy more time to fight climate change than thought

    Earth has nearly a billion hectares suitable for new forests to start trapping carbon, a study finds.