News

  1. Oceans

    Lack of nutrients stalled rebound of marine life post-Permian extinction

    Warm sea surface temperatures slowed the nitrogen cycle in Earth’s oceans and delayed the recovery of life following the Permian extinction, researchers propose.

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  2. Neuroscience

    Fentanyl’s death toll is rising

    The ability of fentanyl, an opioid, to freeze chest muscles within minutes may be to blame for some overdoses, a new autopsy study shows.

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  3. Neuroscience

    Eating shuts down nerve cells that counter obesity

    A group of nerve cells shut down when food hits the lips, a study of mice finds.

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  4. Archaeology

    How to get Ötzi’s look

    DNA from Ötzi the Iceman’s clothes and quiver traced to both domesticated and wild animals.