Fig.2 (IMAGE) Osaka University Caption Collective migration of cancer cells and formation of cell aggregates. The leftmost image shows the initial distribution of cancer cells. Approximately 700 cells are shown in the image. The remaining three images together show the 5-hour trajectories of 71 randomly selected cells. A number of cells have moved toward the upper-right position in the images and formed an aggregate. The area of each image is 1 mm x 1 mm. Credit Osaka 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.