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Nature
Salmon: Running the Gauntlet
Season 29
Episode 12
The parallel stories of collapsing Pacific salmon populations and how biologists and engineers have become instruments in audacious experiments to replicate every stage of the fish's life cycle. Our once great runs of salmon are now conceived in laboratories, raised in tanks, driven in trucks, and farmed in pens. Here we go beyond the ongoing debate over how to save an endangered species.
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Discover the powerful effect hummingbirds have over their wild neighbors in Costa Rica.
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Join scientists as they go to extraordinary lengths to understand wild dogs.
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How do wild dogs survive and thrive in the wild?
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Meet the many species of canids, the family of wild dogs.
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Experience the soul of the ocean in a never-before-seen look at life underwater.
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Immerse yourself in Scotland with its magnificent 500-year-old Scots pine tree.
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Dive deep into South Texas to meet one of America’s most endangered cats: the ocelot.
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Get an intimate look at what makes woodpeckers so special. Narrated by Paul Giamatti.
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Journey from Canada’s Arctic to the boreal forest and discover how animals survive.
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Follow the great wildebeest migration in East Africa, one of nature’s most amazing events.
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Discover the wildlife and landscapes of Portugal, from its forests to coasts.
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Follow the planet’s longest land-animal migration in Alaska.