Extras
Celebrate the life and career of Pulitzer Prize-winning poet Mary Oliver.
A Vermont couple finds new ways to better protect their land from drought and floods.
An Iowa farm thrives as one of the state’s few Black-owned farms.
A Georgia farm keeps the produce coming year-round by planting and harvesting in different locations
See how college students are turning soybeans into new products like baby wipes.
A California farmer shares easy-to-grow mushrooms with giftable box kits.
A Montana rancher honors his ancestors, and Mother Earth, by restoring native grasses to his land.
A Minnesota farm family plants a new kind of wheat that restores the soil and saves water.
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Be Smart Season 13
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Be Smart Season 1
How thousands of tiny brains, obeying simple rules, solve problems no individual can understand.
Joe visits a flavor lab to uncover how our senses shape our taste.
Here is the REAL science about "alpha males."
How did the mass extinction of the dinosaurs play out, moment by moment?
Think traits like eye color or tongue-rolling are simple genetics? Think again.
Why is the Martian sky red by day… but blue at sunset?
Seedless fruits are delicious, convenient… and completely unnatural.
What does randomness really mean? And why your digital life depend on it?
Why do we have different blood types? And why do we have blood at all?
How did dinosaurs become birds—and what good is half a wing?