4-O TRAINING THE HUNTING DOG 



from, that between man and the highest mammal. 

 The female coccus, while young, attaches itself by its 

 proboscis to a plant, sucks the sap, but never moves 

 again, is fertilized and lays eggs, and this is its whole 

 history. On the other hand, to describe the habits 

 and mental powers of the worker-ants would require, 

 as Pierre Huber has shown, a large volume. I may, 

 however, briefly specify a few points. Ants certainly 

 communicate information to each other and several 

 unite for the same work or for games of play. They 

 recognize their fellow ants after months of absence 

 and feel sympathy for each other. They build great 

 edifices, keep them clean, close the doors in the even- 

 ing and post sentries. They make roads as well as 

 tunnels under rivers, and temporary bridges over 

 them by clinging together. They collect food for 

 the community, and when an object too large for en- 

 trance is brought to the nest they enlarge the door 

 and afterward build it up again. They store up seeds 

 of which they prevent the germination and which, if 

 damp, are brought up to the surface to dry. They 

 keep aphides and other insects as milch cows. They 

 go out to battle in regular bands and freely sacrifice 

 their lives for the common weal. They emigrate ac- 



