托福口语 Task 4

Today we're going to talk about a fascinating behavior in the animal kingdom called 'allomimicry.' In allomimicry, one species evolves to imitate not a predator or a dangerous animal, but a completely different species that shares its habitat. This imitation usually provides a survival advantage, often by gaining access to resources that the imitator couldn't otherwise obtain. Let me give you two examples. First, consider the cleaner wrasse, a small fish that removes parasites from larger fish. Some predatory fish, like the saber-toothed blenny, mimic the cleaner wrasse's appearance and swimming pattern. When a larger fish approaches expecting a cleaning, the blenny instead takes a bite out of it. This gives the blenny an easy meal without having to chase prey. Second, think about the orchid mantis. This insect resembles a pink orchid flower. It doesn't just hide from predators—it attracts pollinators, like bees and butterflies, which come to the 'flower' for nectar. When they land, the mantis captures and eats them. So in both cases, the mimicry allows the animal to exploit the trust or behavior of other species for its own benefit.