|Barked: Wed Jun 27, '12 9:11pm PST |
|I wouldn't say it's only backyard breeding though. People with knowledge of genetics, who show their dogs and so on create similar genetic messes on purpose. Like the Rough Collie Wyndlair Avalanche, purpose-bred double dilute merle who is blind, but was popularly used because he could always create blue merle puppies, like his son who won Westminster best of breed.
It's just a matter of ignorance, purposeful or not, tunnel vision, arrogance, and stupidity.