Notwithstanding Grand Claims to the Contrary, Human Color Vision Still Presents a Major Evolutionary Enigma

Stephen Meyer commented earlier on the recent review of Bill Nye's new book in the Wall Street Journal. The reviewer, science writer Nicholas Wade, claims that major strides have been made lately in understanding the evolution of human color vision. Is that true?

Writes Mr. Wade:

A recent paper in the journal PLOS Genetics, for instance, describes the seven DNA mutations that occurred over the past 90 million years in the gene that specifies the light-detecting protein of the retina. These mut...