138 Dynamic Evolution 



many bench show winners, but this in- 

 volves the structural form of matter and 

 not energy. 



It is common knowledge that setters which 

 win prizes at the bench show are not good 

 as field dogs, and that winners in the field 

 trials are rarely successful at the bench show. 

 Yet both kinds of dogs are of identical blood 

 and came from the same progenitors a few 

 generations previously. The explanation is to 

 be found in selection. When a breeder finds 

 an unusually handsome dog in a litter, one 

 which has the "points" of a setter in their 

 most desirable combination, that dog is con- 

 sidered valuable and is kept for breeding. 

 The other and less desirable dogs of the same 

 litter are sold to men who use them for hunt- 

 ing purposes. A few generations later the 

 descendants of the first dog win on the bench 

 and the descendants of the second dog win 

 in the field. There appears to be no essential 

 reason why a dog having the best points, as 

 observed and judged by experts, should 

 not win in the field, except that which 



