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Changing Seas
Costa Rica's Surfing Paradise
Season 17
Episode 1701
On Costa Rica’s Pacific coast, the surf break at Playa Hermosa is a world-class wave—and the heart of a vibrant ecosystem where endangered sea turtles nest. Recently named a World Surfing Reserve, it’s now the focus of a bold conservation effort, as community members work to restore forests, protect wildlife, and preserve the powerful waves that shape their way of life.
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Scientists test repellents to stop sharks from taking fish from anglers’ lines.
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Scientists and engineers test ways to both mitigate and harness the power of waves.
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Researchers study gray seals on Sable Island, the world’s largest breeding colony.
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Puerto Rico’s fishers transform their communities after Hurricanes Irma and Maria.
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Scientists collaborate with elephant seals to study their life cycles and ocean health.
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Scientists work to unravel the cause of the fish spinning phenomenon in the Florida Keys.
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Scientists in Madeira study the impacts of plastics on whales and dolphins.
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Experts study southern sea otters to ensure their longtime survival on California’s coast.
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Islanders restore Maui's watersheds through traditional Hawaiian wisdom.
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Florida scientists make remarkable discoveries about whitespotted eagle rays.
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Marine archaeologists uncover a Roman shipwreck on Croatia's Adriatic Coast.
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Researchers brave the Arctic’s cold and dark to reveal the mysteries of the Polar Night.