202 CELL INTELLIGENCE THE CAUSE OF EVOLUTION 



ated to the various necessary tactical movements, even 

 when these involve retreat. Their mandibles are so mod- 

 ified from the usual form that they are practically useless 

 to the owner except for fighting. The ant is thus not only 

 unable to perform the delicate actions involved in feeding 

 its own larvae, but it is quite unable to feed itself, and 

 will starve in the midst of plenty unless its slaves are 

 there to feed it. P. Rufescens attacks the nests of other 

 ants, killing many of them, and carrying off some of the 

 larger pupae. When these hatch out, they serve their 

 masters willingly and faithfully, even fighting in defense 

 of the nest. In an allied American species, the slaves 

 even carry their masters and mistresses when the colony 

 migrate, as the latter do nothing for themselves. The ex- 

 treme of dependence is exhibited by Anergates, which is 

 unable to feed itself or its larvae, and would be quite un- 

 able to cope with other ants that live with and tend it, 

 did the latter decline to serve." 



The size of an animal has nothing to do with its intelli- 

 gence. Compare for instance the intelligence of the in- 

 sects with that of man. The insects do the same thinking 

 and planning that man does. The brain of the insects is 

 but a microscopic speck. The bees work together for a 

 purpose, like the organization of a large city or factory. 

 The ants have their slaves, and keep cows and milk them. 

 Some ants are parasites and live upon others as men do. 



It is now admitted by the scientific world that the insect 

 known as the Hunter Wasp is able to perform surgical 

 operations which would puzzle the greatest scientists of 

 today. He is able to do so without any previous exper- 

 ience or instruction in the art. The Hunter Wasp catches 

 the caterpillar or cricket and stings it in such a way as to 

 paralize the creature completely, preventing all move- 

 ment and yet not destroying life. The insects like the 



