The Organs of Sense 123 



The sense of pain is very feeble among fishes. A trout has 

 been known to bite at its own eye placed on a hook, and similar 

 insensibility has been noted in the pike and other fishes. " The 

 Greenland shark, when feeding on the carcass of a whale, allows 

 itself to be repeatedly stabbed in the head without abandoning 

 its prey." (Gijnther.) 



