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Listen "37: Metamorphosis"
Episode Synopsis
Why are some ancient rocks well-preserved, while others are extremely messed up? Today, we'll take a side quest from our Greenland arc to learn more about metamorphosis, which changes rocks beneath our feet. On the way, we'll transform toast into cookies, take an elevator ride deep into the crust, and meet an ancient rock with a babyface. Extra credit: make some toast, or go looking for butterflies.
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