Extras
From Highland pastures to global fashion, wool’s history is woven into Scotland’s identity.
From catwalk to castoff, Shane follows our tossed threads to the Chilean desert.
Shane explores how beavers once ruled North America — and how they might again.
A man dies on a bus and Bea is warned off the case, but she refuses to stop investigating.
Shane investigates the future of bees, from honey bees to wild native species, in a changing world.
A body disappears from the morgue. Patience has a connection to the case.
Lise Davidsen sings an excerpt from Leonore’s Act I aria in the final dress rehearsal.
The competition returns to Nashville as eight home cooks compete to win "The Great American Recipe"!
Discover how celebrated cookbook writer Marcella Hazan shaped Italian cuisine in America.
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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.
North Carolina’s Outer Banks may be one of the most dangerous coastlines in the world.
Scientists find the exact time of a massive quake using trees, soil and human records.
Can new scientific research help unravel the mystery of Cahokia's disappearance?
What happened to the once lush, now desert-like Colorado River Delta?
How is this groundbreaking experiment in Ecuador helping deforested rainforests recover?
Sea otters play a vital role in maintaining the balance of sensitive kelp forests.
Exploring LIDAR: Tech using lasers to reveal the deep history beneath our world’s surface.