On the back of your skull you can feel a small bump, below which is an opening where the spinal cord enters the skull. The location of this opening toward the bottom of the skull is significant in evolutionary biology for what reason?

Question

Quizplus · Accepted Answer

The shift of the foramen magnum (the opening where the spinal cord enters the skull) to a more inferior position is closely associated with the evolution of bipedalism in hominins. This adaptation allowed for a more upright posture, which is a key characteristic of bipedal stance.

On the Back of Your Skull You Can Feel a Small