Worked Artefacts from Panga ya Saidi Cave (IMAGE) Max Planck Institute of Geoanthropology Caption Worked red ochre; bead made of a sea shell; ostrich eggshell beads; bone tool; close-up of the bone tool showing traces of scraping. (from left to right). Credit Francesco D'Errico and Africa Pitarch Usage Restrictions Only with appropriate credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.