Basilosaurus cetoides was a large mammal that existed 35 million years ago. It was 20 m long and had a large skull, incompletely formed legs, short arms, and a long tail. Scientists claim that the blue whale, which first appeared 1.5 million years ago, is related to Basilosaurus cetoides. Which argument based on the evidence helps support the scientistsā claim?
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Basilosaurus cetoides was a large mammal that existed 35 million years ago. It was 20 m long and had...
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