(IMAGE) Institute of Science and Technology Austria Caption Using high-end microscopes, first author Maria Akhmanova was able to follow the immune cells’ journey inside developing fruit fly embryos. Credit © Maria Akhmanova/ISTA Usage Restrictions - 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.