"Meaning , I take it , pure chance , accident , or just plain 'luck ' ."
"No , I mean evolution , in which statistically random variation is but one factor . It 's a terrible mistake to equate evolution with pure chance ."
"Meaning , I take it , pure chance , accident , or just plain 'luck ' ."
"No , I mean evolution , in which statistically random variation is but one factor ."