Are there differences between Labs of different colors?
Aside from the color itself, there are no differences. Many people feel that black Labs are better hunters, yellow dogs are lazier, and chocolate dogs are hardheaded and stubborn. None of this is true. The reason is pure genetics. Coat color in normally colored Labs is determined by two genes unrelated to anything else about the dog. It is perfectly possible to get all three colors in the same litter, therefore the notion that there is a color based difference in temperament and/or ability is absurd.