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TEXTBOOK OF ZOOLOGY 



hogs belong in the family Suidae and have come down to us from the 

 European wild boar. In southern Texas and on south to South 

 America is a piglike animal, known as the peccaries, or javelinas, 

 Pecari angulatus. They are gregarious, nocturnal, and feed on roots 

 and nuts primarily. Their heads are large, bodies slender, and tails 



Fig. 343. — Buffalo cow and calf. A sight which is no longer seen except In special 

 preserves. (Courtesy of Nature Magazine.) 



short. Hippopotamuses, camels, and giraffes are numerous and impor- 

 tant African members of this order. The llama and alpaca are useful 

 South American forms. 



Animals, such as camels, cattle, sheep, deer, giraffes, and pronghorn 

 antelopes, chew their cud and are therefore said to be ruminants. 



