Answers are grounded in this paper and cite their sources.
Hominid footprints discovered at the Pliocene (3.6 to 3.8 million years ago) site of Laetoli in northern Tanzania represent the earliest evidence of bipedalism in human evolution. This new evidence emphasizes the mosaic pattern of human evolution.
No takes yet. Share an insight, caveat, or question.
Tim D. White (1980) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: