120 CELL INTELLIGENCE THE CAUSE OF EVOLUTION 



cells. These cell colonies are generally specialized in 

 their work, as some attend to locomotion, some to diges- 

 tion, etc. Many have also developed special sense organs 

 like eyes and ears. They are all well adapted to their 



FIG. 16. Shell of Triton nodiferus. 



place and condition in life and they live secure and com- 

 fortable in their strong and beautiful habitations. 



We might next consider the individual known as the 

 cuttle fish and he is a wonder. The cuttle fish is covered 

 with a hard shell made of carbonate of lime and other 



