最終更新日：2024/08/03
The walking whale, Ambulocetus natans, lived approximately 50 million years ago.
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The walking whale, Ambulocetus natans, lived approximately 50 million years ago.
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The walking whale, Ambulocetus natans, lived approximately 50 million years ago.
The walking whale, Ambulocetus natans, lived approximately 50 million years ago.
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