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  • cows grazing
Your search has returned 13 articles:
  • Feature

    Getting creative to cut methane from cows

    View the video

    In a pasture outside Edmonton, Canada, you’ll find a few dozen cows doing what cows do: mostly eating. The average animal spends eight-plus hours a day filling its belly, or as is the case with cows, bellies. Along with that enormous appetite, cows are born with the ability to digest almost any plant they can chew, thanks to a multichambered stomach and a helpful army of...

    11/18/2015 - 16:36 Animals, Microbes, Climate
  • Feature

    View to a cell

    Imagine if your best knowledge of human anatomy came from viewing the body through binoculars from a mile away. You might make out the shape of a hand, but knuckles and fingernails would elude you. Experiments could tell you there’s a pumping heart inside, but to see that heart with any clarity you would have to fix it in formaldehyde or liquid nitrogen, blast it with electrons and add dyes to...

    05/28/2013 - 16:22 Cells, Biophysics
  • Science & the Public

    Airports’ leaden fallout may taint some kids

    People who live near airports serving small planes are exposed to lead from aviation fuel. A new study now links an airport’s proximity to slightly elevated blood-lead levels in children from area homes.

    Small planes (known in the trade as general aviation) tend to run on gasoline, most of which contains lead as an octane booster. These aircraft — used as taxis, personal aircraft and...

    07/14/2011 - 16:55 Technology, Humans & Society, Earth & Environment
  • News

    Nobel Prize in medicine given for HIV, HPV discoveries

    The 2008 Nobel Prize for physiology or medicine will be shared among three European researchers for their pivotal work in identifying the roles of sexually transmitted viruses in causing cervical cancer and AIDS.Half of the $1.4 million prize goes to Harald zur Hausen of the GermanCancerResearchCenter in Heidelberg for his discovery that the human papillomavirus, or HPV, causes cervical...

    10/06/2008 - 05:59 Biomedicine, Body & Brain
  • Feature

    Science News of the Year 2005

    Science News of Yesteryear

    Anthropology & Archaeology

    Astronomy

    Behavior

    Biomedicine

    Botany & Zoology

    Cell & Molecular Biology

    Chemistry

    ...
    12/20/2005 - 03:53 Humans & Society
  • Food for Thought

    Calling All Cows

    Last May, tissues from the carcass of a North American cow turned up positive for bovine spongiform encephalopathy–the ailment responsible for mad cow disease. Within hours, the Canadian government traced the animal to the Alberta farm where it had been raised for its 8 years of life. In short order, other members of its herd were quarantined.

    What made this...

    10/01/2003 - 16:55 Agriculture
  • Feature

    Digital Cells

    Imagine a future in which a single drop of water holds a veritable army of living robots; in which people download software updates not for their computers, but for their bacteria; and in which specially programmed cells course through a person's arteries, monitoring blood sugar concentrations and keeping an eye out for cholesterol buildups.

    These...

    04/21/2003 - 10:56 Technology
  • News

    Deadly Stowaways: Seeds of cancer in transplant recipients are traced back to donors

    An organ transplant gives many people a second chance at life, but the harsh drugs required for staving off immune rejection of the new tissues seem to hike a recipient's risk of cancer. For someone desperately in need of a heart or liver, this drawback represents a gamble worth taking.

    Scientists initially considered this boost in cancer risk to be the result of a suppressed immune...

    04/09/2003 - 12:17 Biomedicine
  • Feature

    Building a Supermodel

    More than 1,800 years ago, the Greek physician Galen came up with a model for how the human body works. Blood, which he called the "natural spirit," originated in the liver and traveled to all parts of the body through the veins. In the left side of the heart, some of the blood mixed with air from the lungs to make "vital spirit," which flowed to all parts of the body through the arteries....

    06/21/2002 - 16:13 Technology
  • Feature

    Letter from the Editor

    03/01/1997 - 00:00