What is an important argument against bipedal development as an adaptation for life on the savannas?
A) There is no evidence that the behavior was adaptive.
B) There is evidence there were few savannas at this time.
C) Bipedalism actually caused more problems than it solved.
D) Most primates are bipedal, so it is not a special adaptive behavior.
B) There is evidence there were few savannas at this time.
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