Hadza (1 of 2) (IMAGE) University of Arizona Caption The Hadza people, in north-central Tanzania, are among the last hunter-gatherers on Earth. Credit Photo: Brian Wood Usage Restrictions This visual may only be used in conjunction with reporting/posting of this news release. Image/video credit must be included exactly as indicated. 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.