托福口语 Task 4

Today, we're going to talk about a fascinating adaptation in the animal kingdom: camouflage. But not just any camouflage—I want to focus on what we call 'disruptive coloration.' This is a pattern that breaks up an animal's outline, making it harder for predators to see it as a whole. The key is that the pattern creates false edges and boundaries, confusing the viewer's perception. Let me give you two examples. First, consider the zebra. When zebras stand together, their black and white stripes blend into a confusing mass, making it difficult for a lion to pick out an individual zebra's shape. The stripes essentially 'dazzle' the predator. Second, think of the military's use of camouflage on tanks and uniforms. They paint irregular patches of green and brown, which mimic the natural dappled light of a forest. This disrupts the smooth outline of a tank, so it doesn't stand out as a solid, recognizable object. So, disruptive coloration works by hiding the overall shape, not just the color.