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Your search has returned 38 articles:
  • News

    Hidden Depths: Antarctic krill startle deep-ocean scientists

    Biologists looked into the abyss and the abyss looked back, with lots of little compound krill eyes.

    The shrimplike Antarctic krill, a major player in polar ecosystems, is supposedly a creature of the upper ocean. Yet the first science cruise to lower a camera to the abyssal seabed of the Southern Ocean off Antarctica found what looked like krill 3,000 meters down, says...

    02/27/2008 - 13:28 Animals
  • News

    Digging that Maya blue

    Before plucking the hearts from humans and tossing the bodies into the sacred cenote, the sacrificial well, the Maya of Chichén Itzá painted their offerings blue—Maya blue. The process for making the unusual pigment, also found on pottery, sculpture, and murals from roughly 400 to 1519, has long puzzled researchers.

    Now an analysis of a 600- to 700-year-old pot (above) found...

    02/27/2008 - 13:15 Anthropology
  • News

    Pinning down malaria's global reach

    Local governments and organizations that fund malaria research need proper maps of its spread to allocate resources effectively, but it has been 40 years since scientists last cobbled together an accurate worldwide view. Using data from more than 4,000 clinical surveys from 2002 to 2006, researchers have now assembled the up-to-date map shown here.

    Red shading identifies...

    02/27/2008 - 12:42 Biomedicine
  • News

    Greener Green Energy: Today's solar cells give more than they take

    Solar power produces, per unit of energy, only about one-tenth as much carbon dioxide and other harmful emissions as does conventional power generation, a new study shows.

    Solar panels don't release harmful gases during use, but making the solar cells does consume materials and energy—mainly from conventional power sources such as coal-fired power plants, which in turn produce emissions...

    02/27/2008 - 12:31 Earth & Environment
  • News

    Drug or No Drug: Placebos may be more than appeasing

    Antidepressant drugs such as Prozac generally fall short of providing significantly more relief to depressed patients than placebo pills do, according to a new analysis of multiple clinical trials obtained from the Food and Drug Administration (FDA).

    Antidepressants substantially outperform placebos only among extremely depressed individuals, says a team led by psychologist Irving...

    02/27/2008 - 11:54