86 



THE HAUNTS OF LIFE 



secured by trying every niche of opportunity. 

 It is the same with the Storm Petrel; it has 

 survived by its originality. 



OPEN-SEA INSECTS 



A fine example of what we may call the 

 adventurousness or insurgence of life is to be 



FIG. 5. SEA-SKIMMER, HALOBATES. 

 An Insect that runs about on the Open Sea. 



found in the family of sea-skimmers (Halo- 

 batidae), wingless insects that run along the 

 surface of the water, often a hundred miles 

 from land. They are closely related to the 



