Search Results for: Fish

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8,283 results

8,283 results for: Fish

  1. Life

    Enter the Virosphere

    As evidence of the influence of viruses escalates, appreciation of these master manipulators grows.

    By Rachel Ehrenberg

  2. The Why of Sleep

    Brain studies may reveal the purpose of a behavior both basic and mystifying.

    By Tina Hesman Saey

  3. All kinds of tired

    Donkeys sleep about three out of each 24 hours. Certain reef fish spend the night moving their fins as if swimming in their sleep. Some biologists argue that all animals sleep in some form or another. But identifying sleep can get complicated. Insects have brain architecture so different from humans’, for example, that electrophysiological recordings […]

    By Susan Milius

  4. As the worms churn

    Burrowing animals mix soil and sediments, shaping the environment and scientists’ understanding of it.

    By Sid Perkins

  5. Botanical Whales

    Adventures in the Tortugas reveal that seagrass fields need saving too.

    By Susan Milius

  6. Trawling the brain

    New findings raise questions about reliability of fMRI as gauge of neural activity.

    By Laura Sanders

  7. Humans wonder, anybody home?

    Brain structure and circuitry offer clues to consciousness in nonmammals.

    By Susan Gaidos
  8. Life

    2009 Science News of the Year: Life

    Breeding records for sheep on Hirta offer an unusual opportunity to study inheritance. Image Credit: Arpat Ozgul Gentler winters shrink sheepWarming has trumped the benefits of fat to shrink sheep on the remote North Atlantic island of Hirta, a new analytical approach has revealed (SN: 8/1/09, p. 12). Weights for wild female Soay sheep dropped […]

    By Science News
  9. Chemistry

    2009 Science News of the Year: Molecules

    Tangles of collagen IV chains link at globules via sulfur-nitrogen bonding (illustrated above). Credit: Courtesy of Science/AAAS New bond in the basementBasements house hidden treasures — including a chemical bond never before seen in living things. Scientists have discovered that collagen fibers in the basement membrane — a tough, structural layer of cells that surrounds […]

    By Science News

  10. The Ties That Bind

    Studies of human social networks go high-tech.

    By Lisa Grossman

  11. Let there be light

    New technology illuminates neuronal conversations in the brain

    By Tina Hesman Saey

  12. Starting Anew

    Scientists turn to lowly creatures to unlock the secrets of regeneration.

    By Susan Gaidos