Imagine a small, unassuming cavern tucked near the Poas Volcano in Costa Rica, known as La Cueva De La Muerte. This tiny cave, only a couple of meters deep, continuously releases nearly pure carbon dioxide that displaces oxygen and swiftly asphyxiates any small creature that dares approach. In a dramatic natural demonstration, guides use a torch whose flame is extinguished at the entrance, a vivid warning of nature’s lethal genius.
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