英语听力：探索发现 2013-03-01 猛玛象进城记 Mammoths to Manhattan—14

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Playing on the streets at night is dangerous, but for the pups, it’s vital for improving their coordination². Parents keep a vigilant³ eye on their antics. Despite the hazards of city life, the Bakersfield kit⁴ foxes are now crucial to the overall survival of the species. 

 

The promise of an easy source of food is a good reason why animals live in cities, especially at times of year when food is hardest to find in the wild. During the winter months, Anchorage in Alaska is home to North America’s largest browser⁵, the moose. But a moose during the day is a little obvious, so they prefer to move around by night. While most of the human population sleeps, the moose wander the streets in search of food.

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