OUR FACE FROM FISH TO MAN 



The evidence of embryology and comparative 

 anatomy points unmistakably to the derivation of 

 the land-Hving vertebrates from air-breathing 

 fishes, with stout paired fore and hind paddles and 

 a complex skull of the general type described above. 

 The lobe-finned fishes as a whole appear to be 



Embryos op Modern Lobe-finned Fish (A) (after Bud- 

 gett) and Amphibian (B) (after S. F. Clarke). 



For details, see p. xv. 



near to the direct line of ascent, although each of 



the known members of the group is probably too 



late in time and too specialized in certain details of 



skull structure to be the actual ancestor of the 



land-living vertebrates. 



In view of the mobility and fleshiness of the 



human and other mammalian faces it may be 



26 



