Final answer:
The anatomical feature related to bipedalism in humans is the presence of gluteal muscles that function as hip stabilizers, which are important for maintaining upright balance.
Step-by-step explanation:
The feature that is anatomical to bipedalism in humans is d. Gluteal muscles that function as hip stabilizers. The evolution of bipedalism involved significant changes in the pelvis and lower limb. Specifically, hip stabilizers such as the gluteal muscles are crucial to maintain balance in an upright position. Other adaptations for bipedalism include the angling of the femur inward (the valgus angle), spinal curves that support an upright stance, the development of foot arches, and the alignment of the big toe with the other toes. The coronally oriented ilium aids in attaching the muscles necessary for bipedal locomotion, while the posteriorly placed foramen magnum is related to the position of the head on the spine in bipeds.