News

  1. Animals

    A 2,200-year-old poop time capsule reveals secrets of the Andean condor

    Guano that has accumulated in a cliffside Andean condor nest for 2,200 years reveals how the now-vulnerable birds responded to a changing environment.

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  2. Health & Medicine

    Ultrasound allows a chemotherapy drug to enter the human brain

    An early-stage clinical trial demonstrates a technique for getting a powerful chemotherapy drug past the usually impenetrable blood-brain barrier.

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  3. Neuroscience

    Neuroscientists decoded people’s thoughts using brain scans

    The finding may lead to better communication aids for people who can’t communicate easily. It also raises privacy concerns.

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  4. Health & Medicine

    Mouse hair turns gray when certain stem cells get stuck

    Stem cells involved in giving hair its color must keep moving and changing maturity levels to prevent graying, a mouse study suggests.