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Your search has returned 45 articles:
  • Feature

    Big Fishing Yields Small Fish

    Sharks, billfish, cod, tuna and other fish-eating fish — the sea’s equivalents to lions on the Serengeti — dominated the marine world as recently as four decades ago. They culled sick, lame and old animals and kept populations of marine herbivores in check, preventing marine analogs of antelopes from overgrazing their environment.

    But the reign of large predators now...

    03/25/2011 - 11:51
  • Feature

    Lettuce Liability

    Little more than a year ago, supermarkets from coast to coast stripped fresh spinach from produce aisles as a food-poisoning outbreak swept the nation. From mid-August through September 2006, virulent bacterial infections sickened at least 204 spinach consumers. Five died and 30 others suffered acute kidney failure.

    Among more than 3,500 genetically unique...

    12/03/2007 - 19:41 Agriculture
  • News

    Salmonella seeks sweets

    Salmonella enterica, a major food-poisoning germ, can enter the tissues of fresh lettuce where no amount of surface washing will evict it. The scientists who reported that finding earlier this year now think that they've gotten to the root of the issue.

    To model salmonella soil contamination from livestock wastes, the researchers seeded sterile manure with one of three toxic strains of...

    11/07/2007 - 10:28 Nutrition
  • Feature

    Dashing Rogues

    In February 1933, the Navy tanker USS Ramapo was steaming its way from the Philippines to San Diego in the midst of an exceptionally strong storm. The 146-meter-long ship was buffeted by near-hurricane–force winds. Early on the morning of Feb. 7, a wave far larger than the others surrounding the ship overtook the Ramapo from behind.

    As the stern of the ship dropped...

    11/13/2006 - 09:18 Earth
  • News

    Are pollutants shrinking polar bear gonads?

    The more polluted a polar bear's fat, the more likely its reproductive organs will be undersize, scientists find.

    They collected gonads from 55 male and 44 female bears killed legally by subsistence hunters in east Greenland. The scientists then tested the bears' fat for pollutants that might affect sex hormones.

    Especially in immature males, testis length diminished with...

    09/05/2006 - 00:59 Earth & Environment
  • Food for Thought

    Another Way Men and Women Differ

    At least until menopause, women face a lower risk than men do of artery-clogging heart disease. Michigan scientists now turn up one potential reason: before menopause, one of the avenues for clearing meal-derived fats from the blood operates better in women than in men of the same age. This makes the fat less available to the plaque-forming cells in women's arterial walls.

    ...

    08/30/2006 - 16:24 Nutrition
  • News

    Alaskan coral beds get new protection

    Huge tracts of delicate coral gardens and soft-coral forests off the coast of Alaska will be permanently protected from fishing gear that targets groundfish and shellfish by scraping the seafloor.

    Most of the affected sites have never been disturbed by this gear. The National Oceanic and Atmospheric Administration (NOAA) on June 28 announced its new rule to preserve that...

    07/19/2006 - 10:04 Earth & Environment
  • Food for Thought

    Reevaluating Eggs' Cholesterol Risks

    Adults are continually bombarded with messages about how eating foods rich in cholesterol can elevate an individual's risks of atherosclerosis and heart attacks. Many such warnings have focused on eggs because their yolks are a major dietary source of cholesterol.

    However, eggs may be getting a bum rap, suggest the findings of a study of middle-aged and elderly volunteers....

    05/02/2006 - 21:28 Nutrition
  • News

    Easy Answers: Quantum computer gives results without running

    Physicists have long known that quantum computers have the potential to race through calculations trillions of times as fast as ordinary computers do. Now, it seems that those machines may not have to calculate at all to deliver answers.

    That seemingly absurd possibility, which was advanced as a theory several years ago, has now received experimental verification. What's more, although...

    02/22/2006 - 12:18 Physics
  • Food for Thought

    Fruits and Veggies Limit Inflammatory Protein (with recipe)

    Over the past few years, many studies have linked an increased risk of debilitating illness—such as heart disease or diabetes—with chronically elevated blood concentrations of a protein typically associated with inflammation. In many cases, people with the indicated illnesses didn't even have a particularly level of inflammation. The good news: A new trial finds that eating plenty of fruits...

    12/01/2005 - 14:38 Nutrition