92 



CHARACTERS OF VERTEBRATE ANIMALS 



the Cape {Proteles Lalandii), which is a burrowing form looking 

 much like a small hyaena (fig. 59). It is, however, a distinct type, 



Fig. 59. — The Earth- Wolf or Aardwolf {Proteles Lalandii) 



as shown by the insignificant cheek teeth and other anatomical 

 characters. 



DOGS 



Dogs, if one includes under that term not only the species 

 commonly so called, but also wolves, foxes, and other similar 

 forms, are a large group of carnivores distributed over the greater 

 part of the world. They are not so highly specialized as the cats, 

 this being shown, for example, by the fact that their teeth are 

 more numerous and not of so highly developed carnivorous type. 

 The legs are long and adapted for running, and there are five toes 

 on each fore-foot and four on each hind-foot, all provided with blunt 

 non-retractile claws. Nearly all the members of the group belong 



