ON THE SENSES OF ANIMALS. 73 



without doing any harm, by others. The goat, 

 the horse, and the sheep feed upon the water- 

 hemlock, which is a certain poison to 'the cow. 



The sense of touch varies greatly in different 

 animals. Man uses his hands, feet, tongue, and 

 lips for feeling: monkeys do the same. In other 

 instances, this sense is chiefly seated in the snout, 

 the proboscis, or lips. Birds use their feet and 

 bills for touching. In snipes and ducks, which 

 have long bills, and which seek their food among 

 mud, the extremities of these are soft, and have a 

 very delicate sense of touch. 



The hearing of most animals is remarkably 

 acute: thus, in watching birds and other creatures, 

 it is quite obvious that they are sensible of many 

 sounds that we do not hear. 



Questions* 



For what is the eagle remarkable ? 

 What kind of animals smell their food at great distances I 

 Are the senses of the dog very acute? 

 Mention some proofs of this. 



What is it that guides animals in their selection of food ? 

 How many kinds of plants are eaten by cows ? 

 How many by the horse and the hog t 

 What plant poisons the cow, and not the horse, the goat, 

 and the sheep 1 



What parts are chiefly used for feeling, by different animals ? 

 Do animals hear quickly ? 



