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1. Bölüm North Atlantic right whales are on the brink of extinction. Follow the fight to save them.
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2. Bölüm Remarkable superpowers make rats the evolutionary heroes of the animal kingdom.
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3. Bölüm Is cannabis a medical cure-all or snake oil? Scientists distinguish the medicine from the myths.
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4. Bölüm How staff at a luxury hotel in Niagara Falls, NY helped ferry enslaved people to freedom.
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5. Bölüm New archaeological discoveries are challenging our understanding of when the first people arrived in North America, rewriting the human story.
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6. Bölüm Some scientists are proposing radical ways to cool our warming planet – but others say it’s time to restore nature on a global scale.
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7. Bölüm How have humans survived extreme environmental change in the past? And what will it take to survive what’s next?
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8. Bölüm Five orphaned grizzly bear cubs get a second chance at life in the wild, but can they survive without their mother? A groundbreaking study follows the bears to find out if rewilding works.
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9. Bölüm Broken genitals and cannibalism. Welcome to the weird and wonderful world of how bugs get busy.
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10. Bölüm Thirty years after historic logging protests on Vancouver Island, the battle to protect old growth forests is still raging.
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11. Bölüm Step into the world of 'friendship detectives', who are unravelling the mysteries of social behaviours in humans and other animals.
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12. Bölüm Inside the secret and rhythmic world of one of nature’s best lumberjacks.
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13. Bölüm For 44 years, David Suzuki has taken us around the world to explore science, technology, and nature – and now for something completely different.