托福口语 Task 4

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Question: Using the examples from the lecture, explain the professor's main point about behavioral adaptation through learning.

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Today, we're going to talk about a fascinating concept in animal behavior called 'behavioral adaptation through learning.' Unlike innate behaviors, which are hardwired from birth, learned behaviors are acquired through experience and can be crucial for survival. Let me give you two examples. First, consider the urban raccoon. In their natural forest habitat, raccoons forage for food on the ground and in streams. But in cities, they face new challenges—like how to open garbage bins. Young raccoons observe their mothers and learn to manipulate latches and lids. This learned skill allows them to access a reliable food source, which is essential for thriving in urban environments. Second, think about the bottlenose dolphin in Shark Bay, Australia. These dolphins have developed a unique foraging technique called 'sponging.' They break off a marine sponge and wear it over their snouts to protect themselves from sharp rocks and venomous stingrays while probing the seafloor for food. This technique is not genetic—it's passed from mothers to daughters through teaching and imitation. So, these examples show how learning enables animals to adapt to specific environmental challenges, enhancing their chances of survival.

📝 参考答案

TOEFL Speaking Task 4 Scoring Rubric

Scored 0-30 based on holistic scoring (original 0-4, scaled to 30).

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