News

  1. Anthropology

    Agriculture’s roots spread east to Iran

    Dig supports prolonged development of domesticated crops at ancient sites across the Fertile Crescent.

    By Bruce Bower
  2. Health & Medicine

    People may have evolved to fight cholera

    People in Bangladesh have genetic variations that might defend against the disease.

    By Nathan Seppa
  3. Life

    Lab-grown liver raises hopes but draws criticism

    Though human cells spontaneously group into rudimentary organs, some scientists say work is very preliminary.

    By Meghan Rosen
  4. Physics

    Particles defy gravity, float upstream

    Inspired by tea leaves’ reverse route into a kettle, physicists demonstrate that water’s surface tension allows unexpected movement.

    By Andrew Grant
  5. Animals

    Gut microbes may put barrier between species

    Wiping out gut bacteria in wasps saves crossbred offspring from death, suggesting that microbes may play a role in speciation.