Fieldwork (IMAGE) University of Washington Caption Left to right: Michelle Stocker, Sterling Nesbitt and Ken Angielczyk conduct fieldwork in Tanzania in 2015. Credit Christian Sidor/University of Washington Usage Restrictions Image credit required. 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.