OUR FACE FROM FISH TO MAN 



Among the highest animals the face acts also as 

 a lure for the capture of a mate. 



In nearly all the lower vertebrate animals, how- 

 ever, the most constant and dominating element 

 of the face is the gateway formed by the mouth 

 and arching jaws to the "primitive gut" or 

 digestive tract. 



Around this architectural centerpiece the higher 

 facial designs gradually developed. 



THE BEGINNINGS OF OUR FACE 



Doubtless it is a far cry from the lowly Slipper 

 Animalcule, whose face consists only of a gash in 

 the side of its moccasin-like body, to the human 

 face divine, but among the thousands of known 

 living and fossil forms Nature has left us a number 

 of significant vestiges on the long pathway of 

 creation. Among the more primitive of the many- 

 celled animals the jelly fishes consist essentially of 

 a two-layered parachute-like sac, the inner layer 

 serving as a primitive gut, the outer layer chiefly 

 as an envelope. The mouth of the sac is greatly 

 puckered and the folds are produced into ten- 

 tacles, often endowed with nettle-like, stinging 



threads. A diffuse nerve net extends everywhere 



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