The fact that whales have pelvic and leg bones leads to the conclusion that
A) they probably evolved from fish.
B) ancestral whales had legs.
C) having a pelvis is advantageous.
D) whales should have functional legs.
E) whales did not evolve by natural selection.

Question

Quizplus · Accepted Answer

Whales have pelvic and leg bones that are vestigial, meaning they are remnants from their evolutionary ancestors. This suggests that ancestral whales once had legs, supporting the idea that they evolved from land-dwelling mammals that returned to the sea.

The Fact That Whales Have Pelvic and Leg Bones Leads