CARNIVOROUS QUADRUPEDS. 65 
105. The Walrus, Fig. 47, is an aberrant species. In 
general form and habits it is like the larger Seals. Its 
chief peculiarity is the 
great length of the ca- 
nine teeth of the upper 
jaw, sometimes reach- 
ing to two feet. These 
tusks are of service in 
defense,in progression, 
and in gathering its 
“ food. It resists with 
x’ them the attacks of 
the Polar Bear; it uses 
them as hooks in clam- 
bering up rocks and 
icebergs, and it draws up with them the seaweed which 
is a part of its food. It is found in the Arctic regions of 
both hemispheres, and is sought after for its oil and its 
tusks. 
Fig. 47.—Walrus. 
Questions. —W hat are included in the family of Urside ? Why are 
they called Plantigrade animals? What are Digitigrade animals ? 
How far are the Urside carnivorous? What is an omnivorous ani- 
mal? What are the habits of this family? What is the type-genus 
of the family? How many species are there of this genus, and where 
are they found? Whatis said of their structure? What of their useful- 
ness to man? -What is said of the Grizzly Bear? What of the Polar 
Bear? What are some of the aberrant species of the Ursidx# ? What 
is said of the Raccoon? Of the Badger? Of the Wolverine? Of 
the Kinkajou? What are the Phocide? Why are they called am- 
phibious? Describe the structure and habits of Seals. What is said 
of their usefulness to man? Where are they found? Describe the 
common Seal. What is said of the Elephant Seal? Of the Fur 
Seal? Of the Walrus? 
