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Poás volcano, Costa Rica

Poás volcano, Costa Rica

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Brian Hynek

Poás volcano, Costa Rica
Poás volcano is an active basaltic andesite stratovolcano with a major eruption about once every 50 years. At its peak is a lake, Laguna Caliente. Researcher Brian Hynek has sampled the lake and found only one microbe that lives in its ultradynamic waters.

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