Dog:

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.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". When a dog has a camouflage pattern on its coat, this is called what?
countershading