Uncategorized

  1. Humans

    Quarrying stone for Easter Island statues made soil more fertile for farming

    Easter Island’s Polynesian society grew crops in soil made especially fertile by the quarrying of rock for large, humanlike statues, a study suggests.

    By Bruce Bower
  2. Science & Society

    Bias in a common health care algorithm disproportionately hurts black patients

    A machine-learning program that uses past medical costs to identify patients for extra care favors white patients over black patients, a study finds.

    By Sujata Gupta
  3. Life

    Remarkable fossils capture mammals’ recovery after the dino-killing asteroid

    A fossil-rich site in Colorado is revealing how mammals rebounded and flourished after an asteroid strike 66 million years ago.