Russell Tuttle

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Russell Howard Tuttle (b. August 18, 1939) is a distinguished primate morphologist, and paleoanthropologist, known for coining the term "knuckle walking" to describe primate gait. He is a member of the faculty of the University of Chicago Anthropology Department.

Tuttle was enlisted by Mary Leakey to analyze the 3.4 million-year-old footprints she discovered in Laetoli, Tanzania. He determined that the creatures that left these prints walked bipedally in a fashion almost identical to human beings. His work is often misquoted by creationists.