The Unit Natural Selection Quotes & Sayings

The starting point of Darwin's theory of evolution is precisely the existence of those differences between individual members of a race or species which morphologists for the most part rightly neglect. The first condition necessary, in order that any process of Natural Selection may begin among a race, or species, is the existence of differences among its members; and the first step in an enquiry into the possible effect of a selective process upon any character of a race must be an estimate of the frequency with which individuals, exhibiting any given degree of abnormality with respect to that, character, occur. The unit, with which such an enquiry must deal, is not an individual but a race, or a statistically representative sample of a race; and the result must take the form of a numerical statement, showing the relative frequency with which the various kinds of individuals composing the race occur. — Karl Pearson

Since natural selection requires a function to select, an irreducibly complex biological system, if there is such a thing, would have to arise as an integrated unit for natural selection to have anything to act on. — Michael Behe

From Hellstrom's Hive Manual. The significant evolutionary achievement of the insects, more than a hundred million years ago, was the reproductive neuter. This fixed the colony as the unit of natural selection and removed all previous limits on the amount of specialization (expressed as caste differences) that a colony could tolerate. It is clear that if we vertebrates can take the same route, our individual members with their vastly larger brains will become incomparably superior specialists. No other species will be able to stand against us, ever - not even the old human species from which we will evolve our new humans. — Frank Herbert