It Seems To Me That For Darwin

Life Is Simply The Reification Of The Process Of Living.

Biology Can Be Divided Into The Study Of Proximate Causes, The Study Of The Physiological Sciences (broadly Conceived), And Into The Study Of Ultimate (evolutionary) Causes, The Subject Of Natural History.

Scientific Progress Consists In The Development Of New Concepts.

A Species Consists Of A Group Of Populations Which Replace Each Other Geographically Or Ecologically And Of Which The Neighboring Ones Integrate Or Hybridise Wherever They Are In Contact Or Which Are Potentially Capable Of Doing So (with One Or More Of The Populations) In Those Cases Where Contact Is Prevented By Geographical Or Ecological Barriers.

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