Emily Singer

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    A New Step in Re-Creating First Life on Earth

    An RNA molecule that can make copies of a variety of RNAs adds new support to the RNA-world theory.

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    New Lizard Shows Evolution’s Predictability

    A new anole on the island of Hispaniola confirms that ecological communities can follow predictable patterns.

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    Faster Evolution on a Warmer Earth

    When life first emerged roughly 4 billion years ago, DNA may have been a much more malleable molecule.

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    How to Grow a New Model Organism

    To develop new model organisms, scientists will have to find species that are easy to grow in the lab.

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    The Strange Case of Typhoid Mary

    The infamous case of Typhoid Mary underscores the importance of tolerance in understanding disease.