Uncategorized

  1. Science & Society

    The U.S. empire was built on bird dung

    A mid-1850s act let the United States seize islands rich in bird guano. Those strategic outposts fueled the U.S. rise to power, a researcher says.

    By Sujata Gupta
  2. Animals

    The ‘Mekong ghost’ megafish has resurfaced after an extinction scare 

    Rediscovery of giant salmon carp in Cambodia sparks hope for the rare fish’s survival and efforts to conserve one of the greatest diversity hot spots.

    By Stefan Lovgren
  3. Life

    How insects can help catch rhino poachers

    A new study looks at which insects can be used as biological clocks to determine when a rhino was killed.

    By Jude Coleman
  4. Space

    A near-Earth asteroid offers clues to one dark matter theory 

    Data from the OSIRIS-REx mission to Bennu place a ceiling on the strength of a hypothetical fifth force that could explain dark matter’s origins.