Quote:dog breeds are just like human races.
Actually, dog breeds are an example of "design" since they were all created by humans.
As to how "intelligent" that design is well......
http://www.petmd.com/dog/care/evr_dg_pur...aROuJxShQE
Quote:The main problem with purebreds stems from the simple fact that to create a purebred puppy you need two dogs from the exact same gene pool. This gene pool is already limited, but many breeders will use dogs from the same family gene pool to create more dogs (inbreeding). Dog clubs often require that their dogs be bred within the same club, which again ends up severely limiting the gene pool variety. As many of these gene pools are limited or closed, the risk of genetic defects rises significantly with each successive coupling.
Defects include a higher risk of cancer and tumors; eye and heart disease; joint and bone disorders; skin, immune system and neurological diseases; and even epilepsy.
When nature was letting wolves evolve it did a fine job. It took humanity to fuck things up.
