Dolphins: Even Smarter Than You Thought | Nat Geo Live
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Denise Herzing: Podemos falar a língua dos golfinhos?
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Our Planet | Coastal Seas | FULL EPISODE | Netflix
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Emperor penguin chicks jump off a 50-foot cliff in Antarctica NEVER-BEFORE-FILMED FOR TV | Nat Geo
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Quão inteligentes são os golfinhos? - Lori Marino
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In Search Of Emperor Penguins, Snow Hill Island Antarctica
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The Insane Biology of: The Octopus
50:01