Uncategorized

  1. Archaeology

    Stone Age people used bone scrapers to make leather and pelts

    African cave finds include remains of skinned creatures and hide scrapers made from animal ribs.

    By Bruce Bower
  2. Animals

    Some birds learn to recognize calls while still in their eggs

    For over a decade, behavioral ecologist Diane Colombelli-Négrel and colleagues have been studying how birds perceive sounds before hatching.

    By Lesley Evans Ogden
  3. Climate

    Australian fires in 2019–2020 had even more global reach than previously thought

    Recent devastating wildfires in Australia added vast amounts of carbon dioxide to the air and triggered blooms of marine algae in the Southern Ocean.

    By Carolyn Gramling
  4. Humans

    Fossils and ancient DNA paint a vibrant picture of human origins

    Paleoanthropologists have sketched a rough timeline of how human evolution played out, centering the early action in Africa.