Extras
The oldest rocks on Earth are more than just ancient—they’re time machines!
This is one of the weirdest mysteries of human evolution: Why do we have grandmas?
Insects and birds have an awesome superpower that repels water and keeps them airborne in the rain.
Why do some people taste music or hear colors? Let’s talk about synesthesia.
How a chemical in lizard spit inspired one of the most important medical advancements.
These diamond makers create one of the most amazing materials on Earth — from dead people.
Learn nature’s ultimate game of hide-and-seek, and the way to win this game is all in the brain.
Nature has had to come up with some crazy ways to survive winter. None are weirder than hibernation.
Political scientist Don Green joins Joe to figure out the complex psychological and social factors t
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Be Smart Season 13
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The oldest rocks on Earth are more than just ancient—they’re time machines!
This is one of the weirdest mysteries of human evolution: Why do we have grandmas?
Insects and birds have an awesome superpower that repels water and keeps them airborne in the rain.
Why do some people taste music or hear colors? Let’s talk about synesthesia.
How a chemical in lizard spit inspired one of the most important medical advancements.
These diamond makers create one of the most amazing materials on Earth — from dead people.
Learn nature’s ultimate game of hide-and-seek, and the way to win this game is all in the brain.
Nature has had to come up with some crazy ways to survive winter. None are weirder than hibernation.
Political scientist Don Green joins Joe to figure out the complex psychological and social factors t