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Titans of the Deep讲了什么？
More than 50 million years ago, the ancestors of the Whales and other Cetaceans adapted to living in the ocean. This might seem like a backward step: how could a mammal breathe, give birth, suckle its young, sleep and feed underwater? Nonetheless, they succeeded in conquering the depths of the whole planet. To survive, they developed mysterious means of communication and new hunting techniques.
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季1 · 集 3 — Denizens of the Deep · 2017-02-01
Sea mammals have one more adaptation that is remarkably similar to how humans live their own lives. They tend to live in family units. Each species has a different system that has allowed them to survive in the harsh ocean.
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- 2017-02-01
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