298 THE WILDERNESS AND JUNGLE 



omnibuses are driven by petrol. If we feel 

 any regret that more of the wild animals 

 should not have been tamed, it is on purely 

 sentimental grounds, for we know that this is 

 their one chance of survival. The revelations 

 of the cave remains clearly show that it was 

 not until man had learnt to tame the horse for 

 work that he left off killing it for food. It 

 was when he discovered that horses could be 

 ridden that he was content to eat other animals 

 that could not. 



