78 VERTEBRATES. 



The Arctic Fox changes ite fur, and becomes wliite during 

 the winter. 



The Hy^na. — The skin of the common hyaena is striped j 

 its hair long, erect, and coarse; its head broad and flat; and its 

 eyes have a frightful expression of sullen wildness. From the head 

 to the tail, along the top of the back, runs a bristly mane, which 

 greatly adds to the fierceness of its appearance. The tail is shjrt 

 ind bushy. The hyaena carries its head somewhat like a dog w) en 



s^*<? 



striped nyseDB, 



pursuing the scent, with its nose near the ground, which gives to 

 the shoulders an elevated appearance. It is about the size of a 

 large dog or wolf, while in form and disposition it more resembles 

 the latter. Its cry is most peculiar and forbidding, in its begin- 

 ning resembling the moaning of the human voice, and ending 

 with a hideous and violent bellowing. Its eyes shine in the dark 

 and it is supposed to see as clearly in the night as in the day. It 

 is an inhabitant of Asiatic Turkey, fSyfia, Barbary, and many other 

 parts of Africa. It is a solitary animal, dwelling in the caverns 

 of mountains, or in dens which it excavates for itself Usually it 



