well not really, if the secret is about how to create a given stamp of animal,(ie working terrier)science says its got to be about genetics and selection of the most suitable selection of animals for breeding, and the techniques employed in trying to achieve this ie inbreeding, linebreeding , selection of outcross blood if needed etc, ( and of course while adding (apparently) unsuitable blood has the chance of adding unsuitable genes, it can also add sometimes hidden suitable ones). but as just about everyone knows, like does tend to breed like, darwin taught us that over 100 yrs ago.however,