Pakicetus 50 million years ago
Aetiocetus
25 million years ago
Gray Whale
Today
Which additional claim can be BEST supported by the evidence from the skulls in the whale fossil record?
O A. The fossil record shows differences in the skulls of the mammals, which shows that they are from three separate species that all
lived at the same time.
B. The fossil record shows similarities in the skulls of the mammals, which shows that they must have had similar habitats and
environments
C. The fossil record shows that some mammals evolved so that their nostrils are further at the top of their skull for better breathing
while in the water.
D. The fossil record does not give enough evidence about the mammals to determine if there is a relationship between the three
skulls.
BI
0
3:14 PM
2R3/2021

The basic theme of whale evolution is the development of large animals from much smaller ancestors, and nowhere is this more evident than in the case of multi-ton sperm and gray whales, whose ultimate forebears were small, dog-sized prehistoric mammals that prowled the riverbeds of central Asia 50 million years ago. Perhaps more intriguingly, whales are also a case study in the gradual evolution of mammals from fully terrestrial to fully marine lifestyles, with corresponding adaptations (elongated bodies, webbed feet, blowholes, etc.) at various key intervals along the way.

Explanation:Pick B is the best choice

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