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  1. Animals

    Farm girl has the chops

    The first big family tree presenting the history of fungus-growing ants shows the leaf-cutters as the newest branch, and a very recent one at that.

    By Susan Milius
  2. Health & Medicine

    Mouse, Heal Thyself: Therapeutic cloning from a mouse’s own cells

    Mice with a Parkinson's disease–like condition benefited from receiving new nerve cells made through therapeutic cloning of their own cells.

    By Patrick Barry
  3. Health & Medicine

    Still Waters: Skin disease microbe tracked to ponds, swamps

    Scientists establish pond water as the natural environment of Mycobacterium ulcerans, the cause of the skin disease Buruli ulcer.

    By Nathan Seppa
  4. Materials Science

    Live Another Day: African insect survives drought in glassy state

    When dehydrated, the larvae of an African fly replace the water in their cells with a sugar, which solidifies and helps keep cellular structures intact.