News

  1. Animals

    Congolese giant toads may mimic venomous snakes to trick predators

    If Congolese giant toads mimic venomous Gaboon vipers, it would be the first reported case of a toad imitating a snake.

    By Carolyn Wilke
  2. 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
  3. 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.