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This is Scientific American's 60-Second Science. I am Adam Hamterture, got a minute? What's sixteen feet tall and 9,550 years old? Its the world's oldest tree. The worn and weathered spruce grows in Sweden's windswept tundra. But, until recently, wel

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Autumn in the Rocky Mountains, a time of change. Aspens turn golden and the bull elk, in the midst of their mating season, work hard to catch the eye and ears of the ladies. Up in the highest peaks, another call rings out. It's the pint-sized prince

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While the males fence, the females look on. Injured and weakened by the battle, the loser will be an easy target for the predators and scavengers that patrol the wilderness. Out here, there is little room for mistakes. With a clear view of the endles

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