Supposedly, there would have been many advantages to man's survival as a biped. Walking on two legs would expend much less energy than ..... in trees.

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Supposedly, there would have been many advantages to man's survival as a biped. Walking on two legs would expend much less energy than ..... in trees. (*) clambering (*) competition (*) corridor (*) coulomb

This is a companion discussion topic for the original entry at https://english.best/questions/21918,supposedly-there-would-have-been-many-advantages-to-mans-survival-as-a-biped-walking-on-two-legs-would-expend-much-less-energy-than-___-in-trees/