Inside the Little Plastic Castle

The brown in labs (ie chocolate) doesn't work that way - there could totally be lab in the mix, but it wouldn't show up as 'some brown on a black coat'. :D From the photos, i tmay be sunburn (natural sunbleaching, which can be intensified by nutritional deficiencies) on her coat OR possibly a coloration called "seal" which is a super weird color that no one can figure out genetically. It's most common in pit bulls, but it also pops up in a small number of other breeds. I think she's probably sunbleached though.