• 14 Sep 1999

    A new lab procedure may someday eliminate the risk of accidentally creating antibiotic-resistant bacteria during the development of transgenic plants.

  • 13 Sep 1999

    Today is the birthday of Walter Reed, an American medical researcher born in 1851 who is celebrated for his work on yellow fever. During the Spanish-American War, more soldiers had died from the disease than in combat.

  • 3 Sep 1999


  • 3 Sep 1999

    Dolly and other cloned sheep may look like exact replicas, but they aren't.

  • 1 Sep 1999

    By boosting levels of a single protein in mouse brains, researchers have made the animals better at memory and learning tests. They say the finding, reported in tomorrow's Nature, could be used to breed smarter animals.

  • 1 Sep 1999

    Today is the birthday of Sergey Nikolayevich Winogradsky, a Russian microbiologist born in 1856 who helped put bacteriology on the scientific map.

  • 27 Aug 1999

    Mice on a strict diet not only live longer than well-fed animals, but they also appear to flex muscles whose cells behave much younger than their age.

  • 26 Aug 1999

    Scientists had long thought that unraveling the structure of the ribosome, the cell's protein factory, would be as hard as climbing Mount Everest.

  • 24 Aug 1999

    Brain scientists may have a new window into an unborn child's mind. Researchers have shown that functional magnetic resonance imaging (fMRI)--an imaging technology that has sprouted only in the past decade--can detect changes in fetal brain activity in response to sounds from outside the womb.

  • 19 Aug 1999

    What makes some males form lasting relationships, while others are promiscuous and irresponsible? The answer may lie, at least in part, in the way the brain responds to a hormone known as vasopressin, according to a study in today's issue of Nature.

  • 17 Aug 1999

    Health officials appear to be making some progress in saving the lives of those with tuberculosis (TB), which remains one of the worst global public health threats.

  • 16 Aug 1999


    is the birthday of Wendell Stanley, an American biochemist born in 1904 who pioneered the study of viruses.

  • 16 Aug 1999

    For most people, an infection with the bacteria Nisseria meningitidis means nothing more than a dose of antibiotics and a few days of headache and malaise.

  • 13 Aug 1999

    Circadian rhythms help the body keep time, but researchers report that they also play a role in forming cocaine habits, at least in fruit flies.

  • 11 Aug 1999

    It's almost like that famous trick where a magician drops pieces of rope into a hat, then pulls out the whole length intact: Scientists can now smuggle up to 17 snippets of DNA into a cell and--presto!--out comes an infectious influenza virus.

  • 9 Aug 1999

    An improbable race to resurrect the woolly mammoth is kicking into high gear. Japanese researchers arrived today at prime mammoth grounds in northeastern Siberia, hoping to find a carcass in the permafrost.

  • 6 Aug 1999

    Today is the birthday of Alexander Fleming, a Scottish bacteriologist born in 1881 who accidentally discovered the antibiotic penicillin, one of the most important medicines of the 20th century.

  • 5 Aug 1999

    Letting sleeping dogs lie may be good advice, but in tomorrow's Cell, researchers describe a payoff for studying narcoleptic dogs: They've found the genetic mutation responsible for the chronic sleeping condition.

  • 4 Aug 1999

    Some heart disease patients may not be able to grow new blood vessels around blocked arteries because they can't make enough of a vital protein, according to a report in the latest issue of Circulation.

  • 3 Aug 1999

    Scientists have identified the gene for Tangier disease, in which a rare hereditary defect alters how the body handles cholesterol.

  • 2 Aug 1999

    This month marks the 102nd anniversary of the discovery by Sir Ronald Ross that mosquitoes transmit malaria. The popular view had been that malaria was caused by bad air (mal aria) or contaminated water.

  • 29 Jul 1999

    The W. M. Keck Foundation, best known for funding giant telescopes that help scientists peer into the distant universe, has decided to invest $110 million to help life on Earth.

  • 28 Jul 1999

    Today is the 74th birthday of Baruch Blumberg, an American research physician whose work has led to blood screening and a vaccine against hepatitis B.

  • 22 Jul 1999

    The man who coined the term "antibiotics" and pioneered their development was born on this day in 1888. While studying how plant and animal remains decompose in soil, microbiologist Selman Waksman of Rutgers University discovered a menagerie of filamentous soil bacteria.