At least 2 hominin species lived at Laetoli site 3.6 million years ago Posted inA. afarensisAnthropologyarchaeologyaustralopithecusBipedalismfootprintshomininshuman evolutionit's not bearslaetolilucymary leakeypaleoanthropologyScience Posted byKiona N. Smith 12/06/2021 Ancient hominin Lucy may have walked alongside yet another bipedal hominin species.