There are portals within many national forests that offer entry into realms of the most curious forms of biodiversity. These underground chambers and hallways are called lava tubes or caves. In these landscapes below the ground, tiny creatures creep in the shadows in costumes of faded hues. Their pallor is paired with neighboring life forms that sparkle when hit by a flashlight, as if dusted with glitter. And these subterranean spaces are also archives that contain records of our Paleolithic and climatic past. To explore within, a readiness for crawling will be required. Fortunately, we have an experienced caver to show us the way.   For a transcript please visit the episode website.

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