Uncategorized

  1. Ecosystems

    Tortoise Genes and Island Beings

    Geneticists and conservation biologists are joining forces to untangle the evolutionary history of giant Galápagos tortoises and to safeguard the animals' future.

    By Bryn Nelson
  2. Health & Medicine

    Mother Knows All

    Fragments of a fetus' genetic material that leak into a pregnant woman's bloodstream reveal details of early fetal development.

    By Sarah Williams
  3. Tech

    Hooking up

    Cleverly designed molecules can self-assemble into networks and stay robustly connected.

    By Davide Castelvecchi
  4. Humans

    Letters from the November 10, 2007, issue of Science News

    Thinking it through Bjorn Merker says that “the tacit consensus concerning the cerebral cortex as the ‘organ of consciousness’ … may in fact be seriously in error” (“Consciousness in the Raw,” SN: 9/15/07, p.