The sex now enjoyed frequently by human beings began 385 million years ago in a Scottish lake, say researchers. Placoderms, specifically Microbrachius dicki, developed bony genitals to transfer sperm, diverging from other fertilization methods previously used. Was it sexy? Probably not. But these earliest vertebrate ancestors of humans probably deserve some amount of thanks. Kim Horcher, John Iadarola, and Andy Riesmeyer (Host of Dweebcast) discuss!
Read more: http://www.bbc.com/news/science-envir…
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