Final answer:
One of the main factors that allows humans to walk long distances is the evolution of bipedal locomotion. Our anatomy has adapted to support walking, with changes in the structure of our legs, feet, and spine.
Step-by-step explanation:
One of the main factors that allows humans to walk long distances is the evolution of bipedal locomotion. This means that we walk on two legs, which provides several benefits such as increased efficiency and the ability to cover longer distances. Our anatomy has adapted to support walking, with changes in the structure of our legs, feet, and spine.
For example, our legs have a valgus angle, which positions our knees and feet under the center of our pelvis, allowing for balance and stability. We also have an arch in our foot and our big toe is aligned with the other toes, which helps in weight transmission during walking. Additionally, our spinal curves and strong core muscles help balance the weight of our upper body.
In summary, the ability to walk long distances is attributed to the evolution of bipedal locomotion, which has resulted in anatomical changes that provide efficiency, stability, and balance while walking.