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Some facts about Labrador Retrievers are that they are affectionate, energetic, playful, and come in several colors. Charcoal Labrador Retrievers, or Charcoal Labs, have a gray tint to their coat. Originally, it was believed that the gray tint appeared from outside Labrador lineage. However, genetics has been able to provide more than enough evidence to support that these are indeed Labrador Retrievers, albeit rare ones.

Their genes contain a diluting factor in coat color dominance traits that are responsible for the gray hue - something that is also present in Silver Labs and Champagne Labs as well. Although their coat color is a little different, Charcoal Labs are still the playful, loving dogs with hearts of gold that Labrador Retrievers are known for and make them one of the most popular dog breeds.