Uncategorized

  1. Paleontology

    Bat-winged dinosaurs were clumsy fliers

    The two known species of bat-winged dinosaurs were a dead end when it comes to the evolution of bird flight, a new study finds.

    By Carolyn Gramling
  2. Anthropology

    Homo erectus, not humans, may have invented the barbed bone point

    Carved artifacts excavated from Tanzania’s Olduvai Gorge suggest now-extinct hominids made barbed bone points long before humans did, researchers say.

    By Bruce Bower
  3. Anthropology

    How environmental changes may have helped make ancient humans more adaptable

    An East African sediment core unveils ecological changes underlying a key Stone Age transition.

    By Bruce Bower
  4. Space

    NASA’s OSIRIS-REx survived its risky mission to grab a piece of an asteroid

    NASA’s OSIRIS-REx spacecraft just tried to grab a piece of asteroid Bennu.