英语听力：探索发现 2012-12-14 冰河新新州 Ice Age Oasis—1

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Eight, seven, six, five, four, three, two, one. Ignition. Lift off.

 

And yet we are relative newcomers here. While other creatures roamed this part of North America for hundreds of millennia², we only arrived at the end of the last great ice age, 13,000 years ago. For most of its existence, North America remained untouched by humans, its dramatic landscapes and wild life undisturbed. Then some time around 13,000 years ago, just as the ice started to relax its grip, hunters from the north set foot in Florida for the first time. Imagine if we could go back and join them as they explore this unknown land, encountering strange animals not seen before by human eyes.

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