That's not true, Jim. They definitely exist. In fact, there are silver labs that are now registered in a number of kennel clubs around the world, AKC for one. They are registered as a diluted chocolate, though, when it comes to colour but the argument as to whether it is a purebred dog is definitely out there. Is it a cross breed (weimaraner and lab) or has the "D gene" that affects the colouring of the dog been introduced into the breeding??
My guess it's likely the cross breeding so in essence it's no different than another very common registered breed that has taken over the market,,,,,the labradoodle. Because I think it's a cross breed, I don't considered it a lab but it is now considered a new breed of dog called the silver lab. It will be interesting to see if it eventually becomes as popular as the labradoodle. It'll probably be bought more for the unique colour instead of it's ability to hunt is my thought on the subject.
Here's some info:
https://www.labradortraininghq.com/l...dor-retriever/