News

  1. Science & Society

    Longer gaps between births can halve infant deaths in developing nations

    Leaving more time between successive pregnancies matters for infant survival, but only in less-developed countries.

    By Sujata Gupta
  2. Health & Medicine

    Manipulating nerve cells makes mice ‘see’ something that’s not there

    Using optogenetics to stimulate about 20 nerve cells causes mice to perceive nonexistent vertical or horizontal lines.

    By Laura Sanders
  3. Materials Science

    Permanent liquid magnets have now been created in the lab

    Magnets that generate persistent magnetic fields are usually solid. But new little bar magnets have the mechanical properties of liquids.

    By Maria Temming
  4. Paleontology

    A flexible bone that helps mammals chew dates back to the Jurassic Period

    A flexible bone that helps with chewing may have helped give rise to the Age of Mammals, a new fossil shows.