118 SAVAGE SURVIVALS 



ed Animals'' teaches that all domesticated ani- 

 mals have come from wild animals. It teaches 

 also something about the world in which these 

 wild ancestors of domesticated animals lived, and 

 the kind of lives they led. 



The second lesson on **Wild Survivals in 

 Domesticated Animals'' shows that a great deal 

 of the wild ancestral nature still survives in 

 domesticated animals — that, while domesticated 

 animals have changed their surroundings, their 

 natures are in many ways not changed. 



The third lesson on * * The Origin of Higher Peo- 

 ples" shows that the higher races of human be- 

 ings have also come from wild men called savages, 

 just as domesticated animals have come from wild 

 animals. This lesson tells also something of the 

 natures of savages and the kind of world they live 

 in, what they do, and the like. 



Then, lessons four and five on ** Savage Sur- 

 vivals in Higher Peoples" show that many traits 

 of the natures of wild men still survive in all high- 

 er men. 



2. Instincts. 



An instinct is a natural tendency in a living be- 

 ing to do a thing in a certain way ivhich has not 

 been learned by experience. Instincts are inborn. 

 "VVe bring them into the world with us. Birds fly 

 north in the spring, and south in the fall, in obedi- 

 ence to an urge or tendency in their natures to do 

 so. They have not learned to do these things. 



