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  1. Life

    Some picky Australian mosquitoes may target frog nostrils for blood

    The insects seem to sip from nowhere else on frogs’ bodies. Thinner skin or denser blood vessels near the nostrils might explain why.

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  2. Science & Society

    Reindeer herders and scientists collaborate to understand Arctic warming

    Siberian reindeer herders and scientists are working together to figure out how to predict rain-on-snow events that turn tundra into deadly ice.

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  3. Under the jungle, a more pluralistic Maya society

    Editor in chief Nancy Shute discusses how new scientific discoveries are rewriting the history of Maya society

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  4. Readers react to mysterious protists, bird brains, more

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  5. Astronomy

    A rare, extremely energetic cosmic ray has mysterious origins

    In 1991, physicists spotted a cosmic ray with so much energy it warranted an ‘OMG.’