An health official wearing protective gear culls a bird at a poultry farm after a naturally occurring bird flu virus was detected near Agartala, India, in January. Sushanta Das/AP hide caption

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Expert Panel To Give Controversial Bird Flu Research A Second Look

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H5N1 avian flu viruses (seen in gold) grow inside canine kidney cells (seen in green). Cynthia Goldsmith/CDC hide caption

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Questions About Bird Flu Research Swirl Around Private WHO Meeting

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Virologists and other scientists are meeting at the World Health Organization's Geneva headquarters to talk about the bird flu. Pierre Virot/WHO hide caption

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H5N1 avian flu viruses (seen in gold) grow inside canine kidney cells (seen in green). Cynthia Goldsmith/CDC hide caption

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Scientists Debate How To Conduct Bird Flu Research

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A government veterinarian worker sprays anti-bird flu disinfectant over birds and fowls at Medan city market in North Sumatra province. Indonesia reported its second human death from bird flu this year in late January. AFP/Getty Images hide caption

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Scientists Take Cautious Tack On Bird Flu Research

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H5N1 avian flu viruses (seen in gold) grow inside canine kidney cells (seen in green). Cynthia Goldsmith/CDC hide caption

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Controlling dust from activities like this was on the minds of those in the Department of Labor in the 1930s, as silicosis, a lung disease, was taking a toll on American workers. Above, a worker jackhammers into rock in Lassen National Forest in California in 1934, preparing to shoot explosives. U.S. Forest Service/Oregon State University Libraries hide caption

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New Silica Rules Languish In Regulatory Black Hole

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New advice on housing lab rodents has left research centers confused about compliance and worried about the costs. Tom Gannam/AP hide caption

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Labs Size Up New Guidelines For Rodent Cages

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Frankincense comes from the Boswellia sacra tree, which grows mainly in the Horn of Africa. The number of trees that produce the fragrant resin could decline by 90 percent in the next 50 years. scott.zona/flickr hide caption

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Trees In Trouble: Grim Future For Frankincense

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H5N1 avian flu viruses (seen in gold) grow inside canine kidney cells (seen in green). Cynthia Goldsmith/CDC hide caption

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U.S. Says Details Of Flu Experiments Should Stay Secret

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A chimpanzee eats a coconut at the Alamogordo Primate Facility at Holloman Air Force Base, N.M., in an undated photo from the National Institutes of Health. A plan to move chimps that had retired to the facility after being subjects of medical experiments sparked controversy and a review of research policies. AP hide caption

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Biomedical Research Using Chimps Curtailed

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This image, from a sensor at the particle accelerator at CERN, is an example of the data signature a Higgs particle might generate. Researchers will spend 2012 sifting through data in an attempt to find the Higgs. CERN hide caption

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No 'God Particle' Yet, But Scientists Say Stay Tuned

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