6o 



VKRTElJRA'l'ES : MAMMALS. 



Hedgehogs. 



These animals are short and thick, and the back is 

 cov'cred with spines. When alarmed, they take the 



Fig. S3. — Madagascar Hedgehog, or Tenrec. 



form of a ball, presenting the spines in every direction, 

 to ward off attacks. They sleep during the day in 

 concealed places, and come forth at night to feed upon 



Fig. S4. — European Hedgehog. 



insects, fruits, and roots. In cold climates they sleep all 

 winter. They live in the Old World and are all small, 

 the European Hedgehog being about ten inches long. 

 The so-called American Hedgehog is a Porcupine. 



Gnawers, or Rodents. 



The Rodents are readily known bv their teeth. In 

 each ja\v they have the two front ones chisel-shaped, 



