MAN'S PLACE IN NATURE 997 



such as money, but it is necessary for the greatest hap- 

 piness. We all know how expensive sickness is, and 

 we also know how much human misery it brings. In 

 order to better understand the body, which is so like 

 a complicated machine, it is necessary to study the 

 structure of its parts and their different functions. 

 Only in this way is it possible to understand the human 

 body as a whole. 



Questions 



1. Name three animals belonging to the primates. 



2. Discuss the differences between man and the 

 other primates. 



3. What do you know about the history of man ? 



4. What sources do we have for estimating the 

 age of man? 



5. Name the chief races of men. Where is each 

 found ? 



6. Why is it of value to you to know something 

 about your body? 



