Exploration of how birds evolved the syrinx to produce diverse sounds after becoming initially silent due to a unique transformation of their vocal organs.
Richard Prum says there's a lot that traditional evolutionary biology can't explain. He thinks a neglected hypothesis from Charles Darwin — and insights from contemporary queer theory — hold the answer. Plus: You won't believe what female ducks use for contraception.
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Richard Prum, professor of ornithology, ecology and evolutionary biology at Yale University.