Deep male voices as a kind of peacock's tail: https://www.cell.com/current-biology/pdf/S0960-9822(08)00371-0.pdf … I'm not usually a fan of ev psych just-so stories, but this one was interesting. And the paper is a nice survey of differences between the vocal tract of humans & other primates. Origins are poorly understood!pic.twitter.com/nF1Eb2E8da
7:46 PM - 5 May 2018
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