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    Sputum Test May Predict Lung Cancer

    By zeroing in on aberrations in two cancer-fighting genes, researchers have found a marker for cancer risk that could help doctors screen people for signs of lung cancer early enough for treatment to be effective.
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    Low-cal diet may reduce cancer in monkeys

    Researchers monitoring monkeys have seen signs that slashing normal calorie consumption can benefit long-lived primates by extending natural life spans and reducing the odds of suffering diseases such as cancer.
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    Old stars shed light on young Milky Way

    Analyzing the composition of 70 of the oldest stars in the galaxy—the largest such sample so far—scientists have found new evidence that a generation of short-lived stars that died explosively must have preceded this elderly population and that the oldest part of the Milky Way originated not as a single component, but as bits and pieces that may have taken several hundred million years to form and coalesce.
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    Time to revise right whales' family tree?

    A statistical analysis of DNA from nearly 400 right whales around the world suggests there may be three species of Eubalena, not just two—a conclusion that may boost conservation efforts.
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    Fossil find extends ants' ancient lineage

    The recently described, 92-million-year-old fossil of a primitive worker ant pushes back the first record of its particular subfamily by 40 million years, forcing researchers to reevaluate their ideas about the early evolution of these insects.
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    A vaccine to help ex-smokers

    By generating antibodies that neutralize nicotine, a vaccine could keep ex-smokers from getting the nicotine high that drives many of them back to their bad habit.