What is everything made of?

Daniel and Kelly answer listener questions about scent dialects, drilling through the ice above the oceans of Enceladus, and why some animals have penises.See omnystudio.com/listener for privacy information. 

Daniel and Kelly interview Dr. Marcelo Wood about what addiction does to our brains, why some of us become addicted to drugs while others don't, what drugs do to our brains in the long term, and more.See omnystudio.com/listener for privacy information. 

Let's explore some curious fixtures in our world--whether or not you're ready to believe in them.

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How to decide what's worth keeping

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A listener asks how to tell if something is a priority

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