Bone tool used for leatherworking (IMAGE) Cell Press Caption This image shows a bone tool from Contrebandiers Cave, Morocco that was used for leather working 120,000 to 90,000 years ago. Credit Jacopo Niccolò Cerasoni Usage Restrictions Credit must be given to the creator. Adaptations must be shared under the same terms. License CC BY-SA 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.