I want to test the ability of students to read a passage and answer questions about it. Could you please come up with a good question for the passage "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."? 

Why is a countershaded animal not easily seen?