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Laetoli Footprints Preserve Earliest Direct Evidence of Human-Like Bipedal Biomechanics

Figure 1

Three dimensional scans of experimental footprints and a Laetoli footprint.

Contours are 1 mm. A) Contour map of modern human footprint (Subject 6) walking with a normal, extended limb gait and side view of normal, extended limb footprint. B) Contour map of modern human footprint (Subject 6) walking with a BKBH gait and side view of BKBH print. C) Contour map of Laetoli footprint (G1-37) and side view of Laetoli footprint (G1-37). Note the difference in heel and toe depths between modern humans walking with extended and BKBH gaits. Laetoli has similar toe relative to heel depths as the modern human extended limb print.

Figure 1

doi: https://doi.org/10.1371/journal.pone.0009769.g001