News

  1. Animals

    Mineral body armor helps some leaf-cutting ants win fights with bigger kin

    Researchers have found that at least one species of leaf-cutting ant has a tough layer of calcite on its exoskeleton.

    By Christie Wilcox
  2. Health & Medicine

    Immunity to COVID-19 may persist six months or more

    Even after recovery, the body continues to improve its antibody response to the coronavirus — perhaps thanks to viral bits hiding in the intestine.

    By Erin Garcia de Jesús
  3. Health & Medicine

    Oxford and AstraZeneca say their COVID-19 vaccine works too

    A third major vaccine, which may be easier to distribute than others, appears to prevent disease and maybe transmission of the coronavirus.