There Is More To Biology Than Rats,

Paleontologists Had Long Been Aware Of A Seeming Contradiction Between Darwin's Postulate Of Gradualism, Confirmed By The Work Of Population Genetics, And The Actual Findings Of Paleontology. Following Phyletic Lines Through Time Seemed To Reveal Only Minimal Gradual Changes But No Clear Evidence For Any Change Of A Species Into A Different Genus Or For The Gradual Origin Of An Evolutionary Novelty. Anything Truly Novel Always Seemed To Appear Quite Abruptly In The Fossil Record.

There Is More To Biology Than Rats, Drosophila, Caenorhabditis, And E. Coli.

The Most Consequential Change In Man's View Of The World, Of Living Nature And Of Himself Came With The Introduction, Over A Period Of Some 100 Years Beginning Only In The 18th Century, Of The Idea Of Change Itself, Of Change Over Periods Of Time: In A Word, Of Evolution.

Definitions Are Temporary Verbalizations Of Concepts, And Concepts- Particularly Difficult Concepts- Are Usually Revised Repeatedly As Our Knowledge And Understanding Grows.

Evolution ... Is Opportunistic, Hence Unpredictable.