72 THE HAUNTS OF LIFE 



less animals of many kinds, which play hide- 

 and-seek among the fronds. 



It is interesting to learn that the animals that 

 live in the Sargasso Sea, instead of being pre- 

 dominantly blue and grey, are clothed in reds, 

 browns, and dull greens, like the weed among 

 which they hide, and they have these colours 

 even when their relatives in the open sea are 

 blue. Some of them have the body reddish- 

 brown, but the fins, which have to be spread 

 out in the open water, are blue. It is thought 

 that the amount and intensity of light have a 

 great deal to do with developing the different 

 colours of animals at different levels of the 

 ocean, but, whatever be the cause of them, 

 there can be no doubt that their effect is often 

 to secure greater safety for their possessors. 



THE ANIMALS OF THE OPEN SEA 



Can we call the roll for the Open Sea? 

 There are many different kinds of Infusorians, 

 among which there is the world-wide giant, 

 Noctiluca or Night- Light, which makes the 

 waves sparkle in the summer darkness. A 

 giant indeed, for it is about the size of a pin- 

 head. Many of the chalk-forming animals or 



