The pendular running gait described in “Stepping Lightly: New view of how human gaits conserve energy” (SN: 9/17/05, p. 182) as one of the most efficient bipedal gaits looks remarkably like the way eyewitnesses claim Bigfoot creatures move. In a Bigfoot hoax, one might use a gait that is unhuman but energy efficient, as the costume would be rather heavy.
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