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The Natural History of the Only Child

Discover why modern families are becoming smaller and how it relates to peacock tails in this captivating essay. Read on!

ByCarl Zimmer
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Why are modern families so small? Could it have something in common with peacock tails? A fascinating essay in the new issue of Science is the basis of my newest column for Wired. And man oh man, are the commenters freaking out. Judge for yourself. The Natural History of the Only Child

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