Uncategorized

  1. Animals

    A diamondlike structure gives some starfish skeletons their strength

    Electron microscope images of knobby starfish’s calcite skeletons reveal an unexpected architecture that compensates for the mineral’s brittleness.

    By Carolyn Wilke
  2. Health & Medicine

    Omicron crushed delta in the U.S. These numbers show just how fast it happened

    It took the delta coronavirus variant eight weeks to make up more than 50 percent of new U.S. COVID-19 infections, estimates show. It took omicron two.

    By Erin Garcia de Jesús
  3. Paleontology

    Fossils reveal what may be the oldest known case of the dino sniffles

    A respiratory infection that spread to air sacs in the vertebrae of a 150-million-year-old sauropod likely led to now-fossilized bone lesions.