CREATION BY EVOLUTION 



"phylogeny," of racial development. All reputable living 

 biologists accept evolution either as proved or as so thor- 

 oughly substantiated as to be practically proved, but they 

 differ as to the precise natural factors or conditions that have 

 brought it about in any particular group of organisms. This 

 point cannot be too strongly emphasized, because the dis- 

 cussions of biologists over the precise nature of the process 

 of evolution are continually being misrepresented by ignorant 

 or dishonest anti-evolutionists as confessions of disbelief in 

 the occurrence of the process itself. There is surely nothing 

 unusual about the discussions of evolutionary causes by biolo- 

 gists. Everybody now believes in what we call gravitation, 

 but physicists, past and present, are by no means unanimous 

 in their views of the precise nature or causes of gravitation. 

 Those who are emotionally upset by the conception of a col- 

 lateral generic relationship between men and the anthropoid 

 apes may be reminded that although the difference in psy- 

 chological and social behavior between the animals of these 

 two groups is undoubtedly considerable, such behavior has 

 exhibited great change even during historical time, and that 

 the structural and functional differences between men and 

 the anthropoids are trivial as compared with those which 

 separate a frog's egg from an adult frog; yet this enormous 

 gap is bridged by a continuous process that occurs under our 

 very eyes. Endless confusion in the popular mind might be 

 avoided if we could dissuade all journalists, politicians, 

 teachers, and clerics from talking or writing on evolution 

 till they had made an intensive first-hand study of the embry- 

 ology of some animal or plant or a thorough investigation of 

 some group of wild or domesticated animals or plants. 



Now it is easy to prove genetic continuity within existing 

 species and between the breeds or races of domesticated 

 forms, but it is very difficult to prove genetic relationships 



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