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Variation

Natural Selection and the Up-Goer Five Text Editor

Patricia Adair Gowaty | Posted 04.15.2013 | Science
Patricia Adair Gowaty

Like many of you, I bit on the Up-Goer Five Text Editor. I marveled at "Hamlet" in the ten hundred most common English words. Jumping in, I took the challenge.

Variation and Selection: What's the Difference? What Are the Issues?

James A. Shapiro | Posted 07.17.2012 | Science
James A. Shapiro

How could natural selection operate so that "the good ones spread in the population" if there were no positive variants in the first place? That is why I am confounded by Jerry Coyne's comment that he can explain natural genetic engineering by "garden variety natural selection."