托福口语 Task 4

Today we're going to talk about a fascinating adaptation in the animal kingdom: mimicry. Now, mimicry isn't just about looking like another animal; it can also involve behavior. One key point is that some animals use behavioral mimicry to deceive predators or prey, which increases their chances of survival. Let me give you two examples. First, consider the alligator snapping turtle. It has a worm-like appendage on its tongue. When it lies still on the riverbed, it wiggles this appendage to mimic a small worm. Fish, attracted by the movement, come close to inspect it, and then the turtle snaps them up. So here, the turtle uses behavioral mimicry to lure its prey. Second, think of the mimic octopus. This octopus can imitate the movements and postures of dangerous sea creatures, like the lionfish or sea snake. When threatened by a predator, it doesn't flee; instead, it contorts its body and moves in a way that mimics these venomous animals. The predator, recognizing the danger, backs off. So in this case, mimicry is used as a defense. Both examples show how behavioral mimicry serves as a survival strategy, either to catch food or to avoid being eaten.