In the case of the toothed whales,the fossil record
A)shows they evolved from fish.
B)shows they evolved from swimming dinosaurs.
C)shows they evolved from a land mammal with hooves.
D)has fragmentary evidence that cannot be explaineD.
E)has no evidence about how they evolved.

Question

Quizplus · Accepted Answer

The fossil record suggests that toothed whales evolved from a land mammal with hooves called Mesonychids. This is supported by the evidence of transitional fossils such as Pakicetus and Ambulocetus, which had the skeletal characteristics of both land mammals and whales. There is no evidence that toothed whales evolved from fish or swimming dinosaurs. The fossil record is, however, fragmentary and incomplete, making it difficult to fully understand the evolutionary history of toothed whales.

In the Case of the Toothed Whales,the Fossil Record