Bipedalism

     The evolution of bipedalism have set humans apart from other apes entirely, we are the only ones who exclusively walk in an upright position. There are many features of bipedalism but what I find interesting is the curvature of the spine. The spine of humans is curved in the lower back as to absorb shock when walking. Early humans also had a similar curve to their spine. While the lower back is meant to absorb the shock of walking, humans do experience spinal injuries and problems do to the amount of stress placed on the spine. The unique curvature of the human spine helps us keep standing upright and keeping our balance. The lower backbone is strongly curved so that the upper body sits above the pelvis and the backbone is aligned for an upright position.
     There are many aspects of the human body that went into the evolution of bipedalism but I feel like the spine was one of the more important transitions. It has to be strong enough to absorb shock and support the body while also having the ability to move around.