[blockquote]I'm not talking about natural selection. How would a brachycephalic dog be a natural advantage? Try to make a brachycephalic bovine.[/blockquote] Get a group of likeminds, start a club, write a standard, and ignore the organisms originally desireable traits and utility. [blockquote]So far, we have not found another organism with the fluid adaptability of the canid. I have been trying to relocate the article I read, but there is something to the genome of a canid which allows this rapid polymorphism, specifically a line of code. Also Belyaev's foxes were an interesting study.[/blockquote] OK, and if you could post a link or reference would be much appreciated.