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“ambulocetus natans”
An early cetacean (marine mammals commonly known as whales, dolphins, and porpoises) that could walk as well as swim: The Ambulocetus natans is the only species classified under the genus Ambulocetus and because it had the appearance of a 3 meter (10-foot) long mammalian crocodile, it was obviously amphibious.
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ambul-, ambulat-, -ambulate, -ambulating, -ambulation -ambulator, -ambulatory, -ambulant, -ambulic, -ambulism, -ambulist
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