THE NEW EVOLUTION 



ing place of the female in which she would find pro- 

 tection and to which food would regularly be brought 

 for joint consumption by the male. Man is the 

 only vertebrate with slowly developing young born 

 one at a time living continuously in an enclosed abode 

 or domicile. Such a manner of life permits the rapid 

 bearing of young, for with the mother protected and 

 provided for she may devote herself entirely to the 

 raising of her children. Animals kept in captivity — 

 fed and protected — sometimes bear young before the 

 preceding young are independent, although they are 

 not known to do so under natural conditions, so 

 there are some grounds for assuming that the human 

 family of dependent young of different ages is asso- 

 ciated with the fixed abode. 



The development of a dependent family including 

 young of many different ages would necessitate the 

 interpretation by the parents of a great number of 

 different sounds and thus might be assumed to lay 

 the foundation for the beginnings of articulate 

 human speech. The basic fundaments of language are 

 already evident in all creatures with dependent 

 young. 



So we find that all the things that make man human 

 may be traced back to the potentialities of the flexible 

 human hand guided by a brain capable of developing 

 those potentialities. 



In the first chapter we saw that in the animal world 

 taken as a whole there were very many instances of 

 man-like attributes, especially among the insects and 

 also among the smaller birds and rodents. We also 



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