Which of the following bones can provide evidence that a fossil animal was bipedal?
A) Humerus, fingers
B) A hand with an opposable thumb
C) Ear bones (related to balance)
D) Pelvis, femur, skull

Question

Quizplus · Accepted Answer

The pelvis, femur, and skull are all strong indicators of bipedalism in fossil animals. The shape and size of the pelvis and femur can suggest the ability to walk upright on two legs, while the position of the skull and spine can also provide clues about an animal's posture.

Which of the Following Bones Can Provide Evidence That a Fossil