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  1. Life

    Good night, Sloth

    First EEG of free-roaming animals finds less sleeping in the real world.

    By Susan Milius
  2. Health & Medicine

    Sharing valuable real estate

    Human brains rewire when people lose a sense, but a new study of people who have regained vision shows that the rewired areas retain their old abilities.

    By Tina Hesman Saey
  3. Plants

    One gene, many shapes

    A single genetic change may lead to the notable diversity of leaves seen in Galapagos Island tomato plants.

    By Tia Ghose
  4. Space

    Neutron tie-dye

    Neutrons can produce 3-D scans of a magnetic field, even inside a solid.

    By Davide Castelvecchi
  5. Health & Medicine

    Drugs: Still bad for you

    Heavy cannabis smokers have increased blood levels of a protein linked to heart disease.