AFRICA

Laetoli, Tanzania. 3.66 million years (Ma).

• Site G, found in 1978: 70 footprints made by three Australopithecus afarensis. Along with footprints were hominin and animal remains and Acheulean objects. The footprints are normally buried to protect them against the elements.
• Site S (150 m away from Site G), found in 2015: 14 footprints made by two Australopithecus afarensis walking in the same time frame, in the same direction and at a similar moderate speed as the other three. One of them (hominin S1) had an average stature between 161-168 cm.

Ileret, Kenya. 1.5 Ma.  They are 97 footprints left by at least 20 Homo erectus individuals, who had a modern foot and stride: a mid-foot arch, straight big toe and heel-to-toe weight transfer. The footprints are indistinguishable from our own.

Ileret footprints. Photo: Hatala, K. G. et al. Footprints reveal direct evidence of group behavior and locomotion in Homo erectus. Sci. Rep. 6, 28766; doi: 10.1038/srep28766 (2016)

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