CREATION BY EVOLUTION 



the present geographical arrangement of the members of 

 the family bears no relation to its recorded geological his- 

 tory. Such an explanation seems to be altogether incred- 

 ible, whereas the evolutionary explanation seems to be 

 entirely adequate. 



Extinction of Faunas 



A great extinction of quadrupeds, which exterminated 

 them over more than three-fifths of the land surface of the 

 globe soon after the appearance of early Man in Europe, is 

 an unexplained mystery. Nobody can yet say why there 

 was such immense mortality among the huge and strange 

 creatures that had roamed over all the continents. What- 

 ever may have been the agent of destruction, it removed from 

 North America a great variety of types, such as elephants 

 and mastodons, many kinds of horses, bisons, tapirs, pec- 

 caries, camels and llamas, huge ground-sloths and giant 

 armadillos (immigrants from South America) as well as 

 giant wolves, great lion-like cats, and sabre-tooth tigers. 

 It was this great extermination that put a gap of thousands 

 of miles between the Asiatic and the South American sec- 

 tion of the camel family by destroying them in the inter- 

 vening areas. 



Principal Areas of Geographic Distribution 



It has long been customary to divide the lands of the earth 

 into zoological regions in accordance with the animals that 

 inhabit them. A map on which these regions are indicated 

 by various tints appears to be a very irrational and arbitrary 

 sort of thing. Few of the regions coincide with the con- 

 tinents. Australia and South America fall each into a single 

 region, and Asia, Africa, and North America belong to two, 

 or even three regions each. The northern part of North 



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