THE ORIGIN AND HISTORY OF ANIMAL LIFE 



627 



sapiens, have been chiefly mental rather than 

 physical. Natural selection has brought 

 about an evolutionary trend toward increas- 

 ing brain power rather than body power. 

 Intelligence has great adaptive value. Man's 

 intelligence has enabled him to adapt him- 

 self to and control his environment. This has 

 made him the dominant animal on the earth 

 today, a position he will probably maintain 

 for a long time to come. 



Where did modern man first arise? We 

 have no satisfactory answer to this question. 

 Some students of this complex problem 

 think Asia, but others equally competent 

 consider Africa to have been the original 

 home of man. Nor is it scientific to be dog- 

 matic about man's pedigree. The general 

 outlines of the evolution of man are fairly 

 well defined, but many of the details are 

 obscure or unknown. 



SELECTED COLLATERAL 

 READINGS 



Barnet, S.A. (ed.). Century of Darwin. Har- 

 vard Univ. Press, Cambridge, 1958. 



Colbert, E.H. Evolution of the Vertebrates. 

 Wiley, New York, 1955. 



Darwin, Charles. On the Origin of Species by 

 Means of Natural Selection, Or the Preserva- 

 tion of Favored Races in the Struggle for 

 Life. Appleton-Century, New York, 1875. 



Dobzhansky, T. Evolution, Genetics, and Man. 

 Wiley, New York, 1955. 



Dodson, E.O. A Textbook of Evolution. Saun- 

 ders, Philadelphia, 1952. 



Dunbar, CO. Historical Geology. Wilev, New 

 York, 1949. 



Hooton, E.A. Up from the Ape. Macmillan, 

 New York, 1946. 



LeGros Clark, W.E. The Fossil Evidence for 

 Human Evolution. Univ. of Chicago Press, 

 Chicago, 1955. 



Moore, R. Man, Time, and Fossils. Knopf, 

 New York, 1953. 



Oparin, A.I. The Origin of Life on the Earth. 

 Academic Press, New York, 1957. 



Romer, A.S. Man and the Vertebrates. Univ. 

 Chicago Press, Chicago, 1941. 



Simpson, G.G. Horses. Oxford Univ. Press, 

 New York, 1951. 



. The Major Features of Evolution. 



Columbia Univ. Press, New York, 1953. 



Weiner, J.S. The Piltdown Forgery. Oxford 

 Univ. Press, New York, 1955. 



