OF MEN AND ANIMALS. 253 



ours. Those who chew the cud, as the cow, for 

 instance, have more than one stomach, and they 

 can return their food into the mouth to he still far- 

 ther masticated. Their intestines are also very 

 long, much longer than our own. 



Such animals as are carnivorous, or flesh-eating, 

 have a structure just the reverse : their teeth are 

 large, sharp, and pointed ; their stomach is small 

 and simple ; and their intestines are very short. 



The teeth and intestines of man are in form and 

 size between the two : we have neither the rough 

 grinding teeth and double stomach of the cow, nor 

 the fangs and short intestines of the lion. 



The cause of this difference is obvious. Vegeta- 

 ble food is much less nutritious than animal food, 

 and it requires a long time to extract the nourish- 

 ing juices from it. Hence, the cow grinds it twice 

 over, and hence it has to pass through a canal of 

 great length. In the lion, the food is much more 

 nourishing and easier of digestion. Hence its 

 teeth are made to tear, and pull the food into pieces; 

 its stomach is small and simple, and the canal 

 short. 



in man, the teeth are set even in' the jaws, and 

 are fitted both for biting and grinding, though he 

 cannot tear his food like the lion, or reduce it into 

 so complete a pulp as the cow. His stomach is of 

 moderate size, and his intestines of a medium 

 length. By these means we are enabled to feed on 

 and to digest both animal and vegetable substances; 

 and for this reason man is called omnivorous. 

 Y 



