Natural Selection Is Not Evolution.

Fairly Large Print Is A Real Antidote To Stiff Reading.

Natural Selection Is Not Evolution. Yet, Ever Since The Two Words Have Been In Common Use, The Theory Of Natural Selection Has Been Employed As A Convenient Abbreviation For The Theory Of Evolution By Means Of Natural Selection, Put Forward By Darwin And Wallace. This Has Had The Unfortunate Consequence That The Theory Of Natural Selection Itself Has Scarcely Ever, If Ever, Received Separate Consideration.

We May Consequently State The Fundamental Theorem Of Natural Selection In The Form: The Rate Of Increase In Fitness Of Any Organism At Any Time Is Equal To Its Genetic Variance In Fitness At That Time.

The More Highly Adapted An Organism Becomes, The Less Adaptable It Is To Any New Change.

... No Scientific Worker Has A Fixed Level Of Significance At Which From Year To Year, And In All Circumstances, He Rejects Hypotheses; He Rather Gives His Mind To Each Particular Case In The Light Of His Evidence And His Ideas.