Uncategorized

  1. Life

    Carlsbad’s 8 million ‘lost’ bats likely never existed

    Thermal imaging and algorithms challenge famous estimate of extreme bat number.

    By Susan Milius
  2. Health & Medicine

    Darkness, melatonin may stall breast and prostate cancers

    New studies suggest strong links between melatonin and breast and prostate cancers.

    By Janet Raloff
  3. Ecosystems

    Pacific Northwest salmon poisoning killer whales

    A protected population of resident orcas around Vancouver Island and Puget Sound is the planet’s most PCB-contaminated mammals, says one researcher.

    By Rachel Ehrenberg
  4. Life

    Everyday tree deaths have doubled

    In past 50 years, apparently healthy forests have started losing trees faster, possibly because of climate change.