Bipedalism
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Bipedalism refers to the use of two appendages (typically legs) for locomotion. An animal or machine that usually moves in a bipedal manner is known as a biped (Latin bi = two + ped = foot).
Bipedalism is considered one of the unique characteristics that distinguish humans from non-humans. This apparent aspect of sasquatch locomotion therefore either brings into question the status of sasquatch as "human" by most current definitions, or it indicates humans share one of their characteristics with an animal.