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Assignment Discovery: The Ancient Bristlecone Pine
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In a remote mountain range in California lives a tree called the Bristlecone pine. These ancient trees are more than 4,000 years old and stand defiantly in the harsh, rocky soils. Learn more with... (more info)

In a remote mountain range in California lives a tree called the Bristlecone pine. These ancient trees are more than 4,000 years old and stand defiantly in the harsh, rocky soils. Learn more with Discovery Channel's "Assignment Discovery."

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