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Сезон 2006, Серия 13
Ultimate Hippo
The hippo can weigh 8,000 pounds, outrun a sprinter, and shares a common ancestor with the whale. Explore the science behind this 15-million-year-old marvel.
The hippo can weigh 8,000 pounds, outrun a sprinter, and shares a common ancestor with the whale. Explore the science behind this 15-million-year-old marvel.
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