54 



to this realm. The chamois is one of the typical spe- 

 cies. The great bustard shown is said to be the larg- 

 est bird of Europe. The hedgehog, one of the typi- 

 cal forms of this area, has been put in the self-de- 

 fence case. 



The !N"orth American forms have already been 

 studied. 



The three wall cases on the north side of the room 

 illustrate the morphology of the teeth and skin and 

 adaptations to various modes of locomotion. 



Teeth. — The case at the right contains various types 

 of teeth. Compare the skull of the lion with one of 

 the herb eaters. The first, a carnivorous animal, has 

 inconspicuous incisors, but large prominent canines 

 for holding and tearing his prey. Then come the 

 molars with irregular, narrow, and sharp edges that 

 pass each other like the blades of scissors. Turning 

 to the herb eater we find the incisors prominent, with 

 sharp cutting edge, and frequently the upper set 

 wanting, as in the cow and sheep. (See the next 

 case.) The canines are wanting or small. The mo- 

 lars are numerous and with the tops flat but ridged 

 like a grindstone for grinding up the vegetable mat- 

 ter. A moment's reflection will show that man's 

 teeth are intermediate in type, a fact that is usually 

 advanced in favor of the argument that he is by na- 

 ture adapted for a mixed diet. 



