Emmanuel K. Ndiema

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Sharp edged flake of Oldowan stone tool found at the Namorotukunan site in Kenya. Author supplied

Early humans relied on simple stone tools for 300,000 years in a changing east African landscape

Niguss Gitaw Baraki, George Washington University; Dan V. Palcu Rolier; David R. Braun, George Washington University; Emmanuel K. Ndiema, National Museums of Kenya, and Rahab N. Kinyanjui

The age of the oldest known Oldowan stone tools from east Turkana has been pushed back by 700,000 years.
Wikimedia

Major new research claims smaller‑brained Homo naledi made rock art and buried the dead. But the evidence is lacking

Michael Petraglia, Griffith University; Emmanuel K. Ndiema, National Museums of Kenya; María Martinón-Torres, Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), and Nicole Boivin, Max Planck Institute of Geoanthropology

Homo naledi had a brain less than half the size of our own. Yet the new research claims it had cognitive abilities far beyond what we might expect.

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