Which of these traits is most strongly associated with the adoption of bipedalism?
A) fingerprints
B) enhanced depth perception
C) shortened hind limbs
D) opposable big toe
E) repositioning of foramen magnum

Question

Quizplus · Accepted Answer

The repositioning of the foramen magnum, the opening in the skull where the spinal cord enters, is the most strongly associated trait with the adoption of bipedalism. Foramen magnum repositioning towards the center of the skull allowed the skull to balance on top of the spine, making walking on two legs much more efficient. The other traits listed, such as fingerprints, enhanced depth perception, shortened hind limbs, and opposable big toe, are not directly related to bipedalism.

Which of These Traits Is Most Strongly Associated with the Adoption