The Man of a Trillion Worlds | Cosmos: Possible Worlds

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Neil deGrasse Tyson describes the childhood dreams of the legendary Carl Sagan and how they carried him into the world of science.

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documentary

earth

우주

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바다색, 바다 표범, 그래스 and the Ecosystem | When Sharks Attack

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Violent tropical storms could be a driving factor in 상어 attacks as they disrupt the 음식 chain and encourage sharks to look elsewhere for food.

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documentary

earth

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Cute Bird Impales Its Prey | World's Weirdest

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How Dolphins Evade 상어 Attacks | Sharks vs. Dolphins: Blood Battle

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It may look like dolphins have no defense against sharks, but they have a series of defenses they can use to avoid sharks.

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documentary

sharks

dolphins

Can Sharks Detect Magnetic Fields? | Sharkcano

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Dr. Stephen Kajiura and Dr. Michael Heithaus test if sharks can detect magnetism using their mysterious sixth sense, the Ampullae of Lorenzini.

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World's Biggest 남생이, 거북이 Can Live Up to 120 Years | National Geographic

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남생이, 거북이

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Jellyfish 101 | Nat Geo Wild

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animals.wild

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The Life of a Baby Polar 곰 - Ep. 4 | Wildlife: The Big Freeze

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baby polar 곰

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내셔널 지오그래픽

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내셔널 지오그래픽

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내셔널 지오그래픽

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내셔널 지오그래픽

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