Cells in Position (video) Howard Hughes Medical Institute Share Print E-Mail Loading video... Caption This video captures the final position of neural progenitor cells in a developing embryo. The tails represent the paths the cells took to get in place over 9.5 hours of development. Credit Yinan Wan et al./Cell 2019 Usage Restrictions Please use credit. Share Print E-Mail 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.