ELEMENTARY ZOOLOGY. 



CHAPTER I. 

 ZOOLOGY AND ITS PURPOSE. 



1. Zoology. Each of us has some acquaintance with 

 at least some of the many animals that are found on the 

 earth. Some of these are pets with which we are asso- 

 ciated daily; some are domestic animals reared and 

 cared for because of their service to man; many more 

 are wild and rarely reach our notice. 



In spite, however, of thousands of years of association 

 with animals, we as a race do not know all that is to be 

 found out even of those animals with which we are most 

 familiar, while there are many species of animals man 

 has never studied at all. 



The study of Zoology includes everything which in 

 any way relates to animals: their form and appearance, 

 their habits of life, their activities and powers, their 

 occurrence on the face of the earth, their relations to 

 other animals, their influence on human welfare. 



This knowledge which we actually have, or may get, 

 with respect to animals is said to make a science only 

 when it is sifted and verified and arranged in an orderly 

 or systematic way. 



2 . The Purposes of Zoological Study. There are several 

 practical reasons why Zoology is a good subject of study 



