News

  1. Health & Medicine

    Shark cartilage doesn’t appear to help lung cancer

    Patients taking an extract show no improvement.

    By Rachel Ehrenberg
  2. Health & Medicine

    Tiny blood vessels expel clots by force

    A study in mice uncovers a new way that capillaries keep the flow going.

    By Laura Sanders
  3. Paleontology

    Octopus origins

    After examining more than 90 new specimens of Nectocaris pteryx, paleontologists put it near the root of the cephalopod evolutionary tree.

    By Sid Perkins
  4. Life

    Bacterial chitchat proves distracting for wound healing

    Microbial communication signals partially block skin cells from closing a cut.

    By Eva Emerson
  5. Humans

    Chaos makes a scream seem real

    Researchers analyze movie sound tracks to identify the acoustic roots of fear.