托福口语 Task 4

Today, we're going to talk about a fascinating concept in animal behavior called 'biological mimicry.' Specifically, I want to focus on how some animals use mimicry not just for camouflage, but to actively deceive predators or prey. Let me give you two examples. First, consider the mimic octopus, found in Southeast Asian waters. It can change its shape, color, and movement to imitate dangerous sea creatures like lionfish or sea snakes. When a predator approaches, the octopus mimics a venomous animal, which scares the predator away. This is called 'Batesian mimicry'—a harmless species copying a harmful one. Second, think of the orchid mantis. This insect resembles a pink or white orchid flower. It sits motionless on plants, and when a pollinator like a bee or butterfly lands on it, the mantis grabs and eats it. Here, the mimicry is 'aggressive mimicry'—the predator uses its resemblance to a flower to lure prey. So, the main point is that mimicry can serve different purposes: it can protect an animal from enemies or help it capture food.