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  "text": "Perhaps our greatest distinction as a species is our capacity, unique among animals, to make counter-evolutionary choices.",
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  "author": {
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    "title": "Why Is Sex Fun?",
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      "text": "Though seemingly remote from human sexuality, shorebird sexuality is instructive because it illustrates the main message of this book: a species’ sexuality is molded by other aspects of the species’ biology. It’s easier for us to acknowledge this conclusion about shorebirds, to which we don’t apply moral standards, than about ourselves.",
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      "text": "Behavior evolves through natural selection, just as anatomy does. Hence if sex is enjoyable, natural selection must have been responsible for that outcome.",
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      "slug": "our-sex-is-ultimately",
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      "text": "Our sex is ultimately laid down by our genes.",
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