Old Trees May Soon Meet Their Match

GREAT BASIN NATIONAL PARK, Nev. — For millenniums, the twisted, wind-scoured bristlecone pines that grow at the roof of western North America have survived everything nature could throw at them, from bitter cold to lightning to increased solar radiation. Living in extreme conditions about two miles above sea level, they have become the oldest trees on the planet. The oldest living bristlecone, named Methuselah, has lived more than 4,800 years.

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