托福口语 Task 4

Today we're going to talk about a fascinating adaptation in the animal kingdom: camouflage, but not the kind you might think of first. I'm referring to 'disruptive coloration.' This is when an animal has patterns that break up its body outline, making it harder for predators or prey to recognize it as a single object. The key is that the pattern creates false boundaries, so the eye doesn't easily see the true shape. Let me give you two examples. First, consider the African lion. Its tan coat seems plain, but lions often rest in tall, dry grass. The vertical stripes of grass shadows and light falling on the lion's body create a disruptive pattern, effectively hiding the lion's body contour from approaching prey. Second, think of the tropical fish called the 'clownfish' – it lives among sea anemones. Its bold white stripes cross its orange body. These stripes mimic the anemone's tentacles, visually blending the fish's body with its host, so a predator sees a mass of tentacles, not a separate fish. In both cases, the animals benefit because their usual outlines are broken up by patterns in their environment or on their own bodies.