72 THE HAUNTS OF LIFE 



hours countless 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 

 predominantly 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 dif- 

 ferent 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. 



t 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 



