Search Content | Science News

Be a Champion for Science

Get your subscription to

Science News when you join.

Search Content

E.g., 03/29/2017
E.g., 03/29/2017
Your search has returned 16 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
  • 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
  • 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
  • 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
  • Feature

    Botany under the Mistletoe

    A holiday merrymaker loitering under the mistletoe may not be thinking much about parasitic plants. That's a loss, because the world's mistletologists are making wondrous findings about the more than 1,300 species they study.

    Some of the plants have flowers with trick openings. Some shoot their seeds farther than most watermelon spitters can spout. Some...

    11/22/2004 - 18:08 Plants
  • Food for Thought

    Seeing Red and Finding Fraudulent Fish

    Peter B. Marko wanted his marine biology graduate students to be able to do DNA fingerprinting of tissues. So, he gave them the assignment of analyzing 22 samples of red snapper meat from fish retailers in eight states. The students extracted DNA from each piece of fish, copied it so there would be enough material to analyze, then matched the DNA in each batch against an archived map of the...

    07/20/2004 - 18:33 Nutrition
  • Food for Thought

    Wash Those Hands!

    When physicians talk about food poisoning, they're not usually referring to the effects of natural toxins made by plants or animals. But some foods do carry that danger. For instance, potatoes can develop pest-deterring agents in and just under their skins that can sicken or, rarely, kill a person. And certain fish — such as the infamous puffer — produce chemicals that have done in more than...

    10/08/2003 - 13:10 Technology
  • Feature

    Mosquito Magnets

    Ah, summer nights! The heat and humidity mingle with the sweet scent of citronella candles, the blue glow of a bug zapper, and the sticky feel of mosquito repellent. Some unfortunate people need this entire antimosquito arsenal to avoid getting eaten alive, while others hardly attract the pesky creatures at all.

    Scientists have known for decades that...

    10/02/2002 - 13:06 Chemistry
  • Feature

    The New GI Tracts

    It's hard to meander down the health-and-nutrition aisles of book megastores without encountering displays for competing diet guides. The books target different parts of the population—people struggling with obesity, lack of pep, or various diseases. Recently, there's been an explosion of volumes for a condition that some authors claim affects one-tenth to one-third of people in the United...

    09/28/2002 - 13:01 Nutrition