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Your search has returned 133 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...

    03/25/2011 - 11:51
  • News

    PCBs may impair fertility

    PCB exposure may interfere with a woman’s ability to get pregnant, a new study of women undergoing in vitro fertilization suggests. The study of 765 women found that those whose blood contained the highest levels of a particular form of polychlorinated biphenyl — one known as PCB 153 — were 41 percent less likely to give birth than women with the lowest levels.

    One contributing factor...

    02/28/2011 - 17:49 Earth & Environment, Body & Brain
  • News

    Fabulon: Looking less fabulous

    Researchers have tentatively linked polychlorinated biphenyls (PCBs) in people—and their dwellings—with Fabulon, a product used throughout the late 1950s and 1960s as a durable top coat for hardwood floors.

    During a survey of 120 homes on Cape Cod, Mass., researchers found two houses with unusually high PCB concentrations in air and house dust. Residents in both homes remembered a...

    01/30/2008 - 10:27 Earth & Environment
  • 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...

    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