Domestic dogs often display the remnants of countershading, a common natural camouflage pattern. A countershaded animal will have dark coloring on its upper surfaces and light coloring below, which reduces its general visibility. Thus, many breeds will have an occasional "blaze", stripe, or "star" of white fur on their chest or underside.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What color is on a dogs upper surfaces if it has countershading?
dark coloring