托福口语 Task 4

Today we're going to talk about a fascinating survival strategy in the animal kingdom: mimicry. Now, mimicry isn't just about looking like another animal; it's about gaining a specific advantage by imitating something in your environment. There are many forms, but I'll focus on two: protective mimicry and aggressive mimicry. First, protective mimicry. Take the example of the harmless milk snake. It has evolved to look strikingly similar to the venomous coral snake. Predators, having learned to avoid the coral snake's bright red, yellow, and black bands, also avoid the milk snake. This resemblance gives the milk snake a huge survival advantage—it's less likely to be eaten. Second, aggressive mimicry, where a predator imitates something attractive to its prey. Consider the anglerfish. It has a fleshy growth on its head that dangles in front of its mouth, resembling a small worm or shrimp. When smaller fish are attracted to this 'bait' and come close, the anglerfish quickly snaps them up. So, in both cases, mimicry is a tool for survival, but the direction of the deception differs: one avoids being eaten, the other helps in catching food.