• 3 Nov 1999

    The roots of all hairs, their follicles, can be swapped from one person to another without bringing on fierce immune attacks seen with almost every other kind of transplanted tissue, scientists have found.

  • 1 Nov 1999

    Scientists have new clues about why a common immunosuppressive drug, cyclosporin, may be sabotaging a promising new therapy for organ transplants.

  • 1 Nov 1999

    For the first time, molecular biologists have established landmarks throughout the genome of one of the world's deadliest parasites, Plasmodium falciparum, which causes malaria and kills about 2 million people around the world each year.

  • 29 Oct 1999

    The world drips with color because the human eye has three types of so-called cone cells, which sense red, blue, and green light. But our vision is downright dull compared to that of the mantis shrimp.

  • 22 Oct 1999

    Mutations in our cells' internal power plants, called mitochondria, may contribute to the aging process, according to a paper in today's issue of Science (p. 774).

  • 21 Oct 1999

    Escherichia coli bacteria have fallen into ill repute these days thanks to a particularly nasty strain, O157:H7, that in the last few years has killed several children who ate infected undercooked meat or unpasteurized milk or juice and sickened thousands of more people in the United State

  • 20 Oct 1999

    Today is the 57th birthday of Christiane Nüsslein-Volhard, a developmental geneticist whose work has helped explain the mechanisms behind the early embryonic development of all multicellular organisms.

  • 20 Oct 1999

    In the first-ever operation of its kind, scientists working in Siberia have excavated a huge chunk of permanently frozen soil containing the remains of a 23,000-year-old woolly mammoth.

  • 19 Oct 1999

    WASHINGTON, D.C.--A drug used to protect U.S. troops in case of a nerve gas attack may be the cause of the Gulf War Syndrome, according to a study released by the Department of Defense today.

  • 15 Oct 1999

    One of the many unsolved riddles about the Ebola virus is where the deadly organism hides in between outbreaks in humans. For the first time, virologists have found traces of the virus's genetic material in small, ground-dwelling mammals near areas of previous epidemics.

  • 15 Oct 1999


  • 14 Oct 1999

    The molecular motor protein called kinesin is a cellular mover and shaker, stirring to action everything from cilia to dividing chromosomes.

  • 12 Oct 1999

    BERN, SWITZERLAND--Austria, whose life-sciences researchers have tended to work in the shadows of their colleagues in neighboring Germany and Switzerland, is now making a move to attract top-flight scientists with a planned molecular bioinforma

  • 5 Oct 1999

    Even as the genome sequencing heavyweights scramble to finish a rough draft of the human genome, they have taken on equally monumental task: churning out a rough draft of the mouse genome by 2003.

  • 29 Sep 1999

    CAMBRIDGE, U.K.--Scientists have discovered tantalizing evidence that microbes are living under nearly 4 kilometers of antarctic ice, leaving teams more eager than ever to explore a vast lake beneath the ice sheet.

  • 28 Sep 1999

    PHUKET, THAILAND--Three U.S. agencies will award grants totaling $12.3 million to help speed an international effort to sequence the rice genome. The new support, to be announced next month but outlined last week by U.S.

  • 27 Sep 1999

    Autumn brings heaps of apples, pumpkins, and other crops. Now another harvest is on the horizon, more akin to the plastic fruit on your grandmother's sideboard: Scientists have engineered plants to grow a biodegradable plastic from nothing but sunshine, water, and CO2.

  • 24 Sep 1999

    Swapping body parts can save lives, but it has a serious risk. A transplant operation requires that patients be given powerful immunosuppressive drugs with potentially devastating side effects such as kidney failure, diabetes, and cancer.

  • 23 Sep 1999

    The ribosome--the cell's large and complex protein factory--has long resisted efforts to decipher its structure, but now four groups of researchers have it in their sights. The findings have sparked a sprint to finish the first truly high-resolution image of the ribosome and its subunits.

  • 23 Sep 1999

    Model airplanes, dollhouses, and other miniatures fascinate collectors with their exquisite detail; the most prized imitations look exactly like the real thing. Now scientists have created a teensy living fly. But don't look for it in your local toy store.

  • 20 Sep 1999

    One of the rites of childhood could soon become a thing of the past: the vaccination shot. Researchers have found that in mice, at least, vaccines made of pure DNA can be absorbed through the skin and provoke an immune response similar to that of standard vaccines.

  • 17 Sep 1999

    The leading crop killer and a growing threat to people with weakened immune systems, fungi--particularly some of the more vicious species--can drill into another organism's tissue with astonishing force.

  • 16 Sep 1999

    Today is the 112th anniversary of the birth of Marguerite Davis, an American chemist who co-discovered vitamins A and B. Davis worked at the University of Wisconsin with Elmer Vernon McCollum, who was trying to create simple mixtures that could replace food in animal diets.

  • 16 Sep 1999

    Carl Winter may be the hippest thing to happen to food safety. Although some critics might think this mild-mannered toxicologist is "Livin' La Vida Loca" by writing lyrics like "Beware La Vaca Loca" to Ricky Martin tunes, Winter is nonetheless a growing music sensation.

  • 15 Sep 1999

    For fish larvae, life boils down to one thing: Eat or be eaten. And so most change into their adult shape as fast as they can. An intriguing exception are eels, ladyfish, bonefish, and tarpon, which spend several months, possibly years, floating as large, transparent larvae.