Extras
An intimate portrayal of three families confronting the unique challenges of Alzheimer鈥檚.
A four-part investigation into insect declines, exploring their diversity and ecological importance.
See how the Philippines' tense race for president in 2022 became the nation's fight for its soul.
The dynamic story of funk music, from early roots to the explosion of '70s urban funk to influences.
The story of how public libraries came to be free and open for all Americans鈥攁nd remain so.
The Nonnatus team oversee the care of a man living inside an iron lung.
Dr. M. Sanjayan investigates the largest river restoration ever attempted in the United States.
After the drought, the rains finally come. But can Katavi survive the flooding?
Historian Simon Schama examines the Holocaust, 80 years after the liberation of Auschwitz.
Meet three Latin American community leaders fighting to retain access to their local water sources.
Latest Episodes
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Be Smart Season 13
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Be Smart Season 12
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Be Smart Season 11
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Be Smart Season 10
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Be Smart Season 9
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Be Smart Season 8
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Be Smart Season 7
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Be Smart Season 6
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Be Smart Season 5
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Be Smart Season 4
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Be Smart Season 3
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Be Smart Season 2
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Be Smart Season 1
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.
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 鈥� from dead people.
Learn nature鈥檚 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
Despite what you may have heard or learned in school, the sun is NOT the center of the solar system.
People see faces everywhere thanks to a quirk of the brain called visual pareidolia.