Discover the evolutionary secrets of some of the world"s most majestic creatures.When Whales Walked follows top scientists on a global adventure as they follow clues from fossil records and change what we thought we knew about the evolution of iconic beasts. This episode looks at the strange ancestors of crocodiles, and how the modern bird evolved from feathered dinosaurs."> 鲸鱼有脚的年代 - 开心电影吧|高清电影|免费电影|最新电影

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