i6o A GUIDE FOR THE STUDY OF ANIMALS 



a. Are any horns developed ? If present, what is their 

 size, shape, direction, and appearance ? 



e. What is' the habitat of the animal ? its distribution 

 and social life ? 



Summary. 



In a short thesis summarize the facts you have found 

 out about ungulates, using the following outline : — 



1. Why called ungulates ? Variation in number of toes. 



2. General fact about the food of ungulates. The two 

 divisions. 



3. The general adaptations for protection. 



4. The social life of the ungulates. 



5. The native ungulates of the United States. 



6. Commercial uses and value. 



Ungulates: Review and Library Exercise 

 Characteristics. 



1. Classification of ungulates based upon number of 

 toes, kind of horns, "chewing the cud," etc. Some of 

 the more important families with examples. 



Morphology and physiology. 



2. The variation in the number and kinds of teeth. 

 The dentition (or dental formula) of horse and cow. 



3. The various types of horns. Shedding of horns and 

 sexual variation. 



4. The structure and function of the stomach of a 

 ruminant. Meaning of the cud-chewing habit. 



5. The structure of the stomach of a camel. 



Economics. 



6. Ungulates which have been domesticated. 



7. Breeds of cattle — their distinguishing marks and 

 valuable points. 



