Uncategorized

  1. Animals

    First mammal joins the eusocial club

    Because naked mole rats exhibit permanent physical traits that distinguish certain castes of a colony, they belong to the same grouping as so-called eusocial insects such as bees, ants, wasps, and termites.

    By Laura Sivitz
  2. Earth

    Life Landed 2.6 Billion Years Ago

    Unusually carbon-rich rocks found in eastern South Africa may push back the evidence of life on land to 2.6 billion years ago, more than twice the current age of indisputably terrestrial organisms.

    By Sid Perkins
  3. Humans

    Letters from the October 16, 2004, issue of Science News

    Hubble grumble The cover type “Farewell to Hubble?” (“End of the Line for Hubble?” SN: 7/24/04, p.