OUR FACE FROM FISH TO MAN 



PART I 



PORTRAIT GALLERY OF OUR ANCIENT 

 RELATIVES AND ANCESTORS 



THE VALUE OF A FACE 



For a billion years or more the ceaseless game 

 of life has been concerned with the capture and 

 utilization of energy for the benefit of the individual 

 and with the rhythmic storage and release of 

 energy for the reproduction of the race. 



In all ages and in all branches of the animal 

 kingdom a face of some sort has been indispensable 

 to all but sessile animals, just because a face is 

 concerned primarily with: 



The detection of desirable sources of energy; 



The direction of the locomotor machinery to- 

 ward its goal; 



The capture and preliminary preparation of the 



energy -giving food. 



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