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In this episode, biologist Patrick Aryee travels across the Americas to explore In this episode, biologist Patrick Aryee travels across the Americas to explore the vital role big animals play in their habitats. From Alaska to Patagonia, he uuyuuyes face to face with grizzly bears, sperm whales and elephant seals to reveal how these giants are shaping their environments – and even helping to reduce climate change.……详情