#RFB-11000583Reading: Fill in the BlanksAcademic,CoreHard
Locomotion
Official Question Material
Prep: Varies
Humans are unique among primates because our [blank] mode of locomotion is walking fully [blank] . Unfortunately, the changes made in our pelvis to help us move on two legs, in combination with babies with large brains, makes human childbirth unusually [blank] compared with the rest of the animal kingdom. Unlike other primates, humans have a lumbar curve in the lower back, leaving us [blank] to lower back pain and strain.
Sample Answer & Audio Transcript
Humans are unique among primates because our chief mode of locomotion is walking fully upright . Unfortunately, the changes made in our pelvis to help us move on two legs, in combination with babies with large brains, makes human childbirth unusually dangerous compared with the rest of the animal kingdom. Unlike other primates, humans have a lumbar curve in the lower back, leaving us vulnerable to lower back pain and strain.
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