3min chapter

TED Radio Hour cover image

What Lies Beneath

TED Radio Hour

CHAPTER

The Importance of Exploring Caves

For Jill Heiners, diving into caves can feel like time travel. Exploring these voids in the planet is so important because they are like museums of natural history. We can learn about ancient civilizations that have used these as portals to another world. These are also places where there is life.

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