Latest Issue of Science News

April 14, 2001

  • News

    . . . and then takes some lumps

    The skeletal diversity that many scientists use to divide up fossil species in our evolutionary past masks a genetic unity that actually encompassed relatively few species, contend researchers in an opposing camp.
  • News

    Our family tree does the splits...

    Large-scale changes in climate and habitats may have sparked the evolution of many new animal species in Africa beginning 7 million to 5 million years ago, including a string of new species in the human evolutionary family.
  • News

    Lifestyles of the bright and toxic overlap

    The first study of home life for Madagascar's poison frogs in the wild finds a striking resemblance to a group that's not closely related, the poison-dart frogs in the Americas.
  • News

    Ancient ash flow brought sudden death

    Analysis of the excavation in Herculaneum of the victims of the A.D. 79 eruption of Italy's Mount Vesuvius indicates that when the initial ash flow swept through the city, it arrived so quickly that some residents didn't even have time to flinch.
  • News

    Viruses may play a part in schizophrenia

    Scientists have for the first time linked high levels of retroviral activity in the central nervous system to some cases of schizophrenia, a severe mental disorder.