News

  1. Paleontology

    Cannibalism in the womb may have helped megalodon sharks become giants

    The ancient sea terror Otodus megalodon may have grown to at least 14 meters long thanks to a firstborn pup’s predatory behavior, some researchers say.

    By Carolyn Gramling
  2. Health & Medicine

    What does COVID-19 vaccine efficacy mean?

    The initial goal for a vaccine against COVID-19 is to reduce cases of the disease by at least 50 percent in those vaccinated versus those not.

    By Aimee Cunningham
  3. Health & Medicine

    Neandertal genes in people today may raise risk of severe COVID-19

    People in South Asia and Europe are more likely to carry a genetic heirloom from Neandertals linked to susceptibility to the coronavirus.