Extras
Get ready for the all-new season, coming January 17, 2027 at 9/8c.
The cast play a game of "What's in the vet bag?" with sentimental props from the series.
See how the unique partnership between two countries made the iconic monument possible.
Join Elmo and the Sesame Street gang on a once-in-a-lifetime African safari adventure.
New discoveries reveal how pivotal Great Zimbabwe was to global trade.
Discover all-new Secrets of the Dead on Wednesdays this fall, starting October 14 at 10/9c.
The story of the dolphin reveals how intelligence evolved, step by step, over billions of years.
Discover filmmaker and playwright Luis Valdez, a founding figure of the Chicano Movement.
A filmmaker explores racial justice in his hometown as he returns to his conservative father.
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Overview Season 3
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In a Costa Rica forest, ecologists scale the 70-foot canopies to solve a high-altitude "whodunit."
Why did a fire in the Great Dismal Swamp burn for 111 days? And what can we learn from it?
Our thermal drones exposed pollution from a massive AI data center powering the AI boom.
America’s most toxic lake may also be one of its most overlooked resources.
Scientists are studying solar storms in the aurora that can disrupt satellites and power grids.
Each fall in Costa Rica, one of nature's strangest spectacles takes place–a tsunami of sea turtles.
The West Texas desert has a surprising feature: a prehistoric ocean reef.
The Caribbean town of Plymouth lies frozen in the ash of a devastating volcano.
Meet the axolotl, Mexico City’s endangered, smiling salamander.
Florida's once endangered crocodiles are making a very unlikely comeback!