Ochre Outcrop (Other Keyword)

DOCUMENT Citation Only Paul W. Baxter. Tom Connolly.

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PROJECT The George Washington University. Andrew Zipkin. Alison Brooks.

Symbolism, including language, is widely viewed as an essential element of modern human behavior. Documenting the evolutionary origins of such behavior, however, has proven difficult. Ochre pigments (iron oxides) form a major part of the evidence used to interpret when humans began communicating through symbols. Excavations at Olorgesailie, Kenya; Karonga, Malawi; and Twin Rivers, Zambia have yielded ochre artifacts that may indicate very early occurrences of symbolism. Yet mineral pigments may...