Listen again and answer the questions. Remember the Learn to Learn tip: look for the question words and think about the answers before you listen. 1 How does one student describe wolves? They are fast, dangerous and clever. 2 Why weren't there any wolves in Yellowstone Park for 70 years? 3 How many wolves were in the park about 20 years ago? 4 Why was it difficult for the wolves at first? 5 Why is it difficult to see wolves in the park?