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In this episode of The Atlas Obscura Podcast, we visit a river in the Amazon that is so hot that anything that falls into it dies. But how did it get this way?

Our podcast is an audio guide to the world’s wondrous, awe-inspiring, strange places. In under 15 minutes, we’ll take you to an incredible site, and along the way you’ll meet some fascinating people and hear their stories. Join us daily, Monday through Thursday, to explore a new wonder with cofounder Dylan Thuras and a neighborhood of Atlas Obscura reporters.

Sofía Ruzo/Used with Permission