Conducting Field Surveys (IMAGE) Kobe University Caption These are conducting field surveys at the Kaizu city site (left) and the pair of egg sacs found at the site. Credit Kobe University Usage Restrictions None 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.