Lithic tools (IMAGE) Griffith University Caption Stone tools recovered during a recent survey of the Central Zagros Mountains, indicating that this zone would have been a favorable habitat for human occupations in humid periods. Credit Griffith University Usage Restrictions Use with credit License Original 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.