The pendular running gait described in this article 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. On the other hand, since such a gait is energy efficient, perhaps an unknown species of massive primates might have evolved to use it.

Wayne Harris-Wyrick
Oklahoma City, Okla.

From the Nature Index

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