The Origin of Life n 



those that most readily coped with the 

 exigencies of the moment. 



The strong armature of the Foramini- 

 fera was presently developed still further 

 by the coral animals. The fortified tower 

 anchored to one spot was well enough, 

 but it left much to be desired. A pro- 

 longed siege, whether by animals or the 

 accumulating silt, meant death for the 

 garrison. Therefore at a later period 

 the conception of a fortress which the 

 creature could carry with it wherever it 

 went, opened up a fresh horizon. Such 

 an obvious necessity brought into being 

 the innumerable crustaceans, molluscs, 

 echinoderms and insects that we are all 

 familiar with. 



Size counted for more than " brain 

 power " in the world of thirty million 

 years ago. To-day the position is re- 

 versed, and the intelligent human dwarf 

 will, every time, rise superior to the 

 nincompoop giant in the struggle for 



