CONTENTS 



I, What insects are, and how they are classified . . . i 

 II. How they are constructed ...... 26 



III. How they breathe, feed and reproduce .... 34 



IV. How they become aware of their surroundings, by sight, 

 hearing, touch, smell and taste . . . . • 58 



V. How they make the basic movements of crawling, walking 



and running, jumping, swimming and flight ... 72 



VI. How they behave : their reflexes and instincts; swarms, and 

 other kinds of assembly; migration; insect communities; 

 social life; signs of intelligence ..... 86 



VII. The diversity of insects: how their body is adapted to its 

 way of Hfe; how different insects come to look alike by 

 convergent evolution, and by mimicry . . . .110 



VIII. Inseas and us: how their activities may make them into 



our friends or our foes . . ... . .119 



References . . . . . . . .132 



Index 133 



IX 



