Kuhn's description of how scientific revolutions happen does not apply to any biological revolution. To be very frank, I cannot understand how this book could have been such a success. The general thesis was not new, and when he did assert specific claims he was almost always wrong!Kuhn's book mainly appealed to historians and social scientists. It was they who built it up into a big thing. It was vague, and vagueness always appeals to historians and social scientists.