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  1. Astronomy

    A Phoenix on Mars

    A new robotic lander will search the north polar region of Mars for habitability.

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  2. Animals

    Twee Twee Tweetle

    Bird brains have a separate pathway for the babbling nonsense of baby talk.

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  3. Earth

    In the aftermath

    The charcoal left after a forest fire stimulates microbial activity that boosts carbon loss from organic material covering the ground.

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  4. Earth

    It’s the meat not the miles

    Eating less red meat and dairy may do more to reduce food-associated greenhouse gas emissions than shopping locally.

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  5. Animals

    Sexy side of UV-B

    The first evidence of ultraviolet-B courtship in animals comes from jumping spiders.