托福口语 Task 4

Today, we're going to discuss a fascinating concept in biology called 'mimicry,' where one species evolves to resemble another. But what's really interesting is not just the resemblance, but the 'function' behind it. Mimicry isn't always about protection from predators; it can also serve to deceive prey or even to gain a reproductive advantage. Let me give you two examples. First, consider the orchid mantis. This insect resembles a pink and white orchid flower. It doesn't hide from predators; instead, it sits on actual flowers and waits. Its prey, like bees and butterflies, mistake it for a flower, come to feed, and then become the mantis's meal. So here, mimicry is a hunting strategy. Second, think about the male scaly cricket. It produces a sound similar to that of a female cricket, which attracts other males. When a rival male approaches, the scaly cricket can then mate with the actual females nearby without competition. So in this case, mimicry is used for reproductive deception, giving the male an edge in mating. These examples show that mimicry serves different functions beyond just avoiding predators.