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MAMMALS 
FIELD SUGGESTIONS 
If you are where you can visit a zoological park it is an easy matter 
to learn how to distinguish the different mammals, a thing which every 
one should be able to do. There is another line of study which consists 
in selecting some one or two of the common mammals, such as squirrels, 
and making a thorough study of them from week to week, month to 
month, year after year, until you feel thoroughly acquainted with them. 
A third line of study is that of hibernation. Some mammals do not 
hibernate, some do so only during cold snaps, while others go to sleep 
for the entire winter. Consult, Walter B. Taylor, Suggestions for 
Field Studies of Mammalian Life-histories — United States Depart¬ 
ment of Agriculture, Department circular 59, 1919. 
QUESTIONS 
How do you tell a mammal from other vertebrates ? What mammals 
live near your home? What do they eat? Where do they spend the 
winter ? 
REFERENCES 
Davenport, Domestic Animals and Plants. 
Linville and Kelly, Zoology. 
Plumb, Types and Breeds of Farm Animals. 
Stone and Crane, American Animals. 
