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  1. Life

    Function for green fluorescent protein

    Scientists find that the glowing molecule also passes electrons, offering a new clue about the natural function of a protein that's become ubiquitous in molecular biology.

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  2. Psychology

    Males, females swap sex-role stereotypes

    Analysis finds that mating strategies are not universal

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  3. Ecosystems

    Living Physics

    From green leaves to bird brains, biological systems may exploit quantum phenomena.

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  4. The Genetic Dimension of Height and Health

    It may be no tall tale: A few inches taller or shorter could signal a risk for some diseases.

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  5. Animals

    Swarm Savvy

    How bees, ants and other animals avoid dumb collective decisions

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  6. Plants

    Landscaper’s darling hybridizes into an environmental nuisance

    Variation underlies the Callery pear tree’s transformation .