Official 10 Lec 1
Question 3 of 6
According to the professor, what does the discovery of Ambulocetus mean to researchers?

A.

It fills a gap in the fossil evidence for whale evolution

B.

It has become less significant since the discovery of Basilosaurus

C.

It call into doubt the theory that whale evolved from land mammals

D.

It suggests that whales evolved more recently than was previously believed

正确答案:A

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