To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 1. Video of the movement of cells by electroporating the PSM cells with uorescent reporters specifically labeling cell nuclei in an elongating PSM. Rectified random cell motility as a mechanism for embryo elongation Ido Regev, Karine Guevorkian, Anupam Gupta, Olivier Pourquié, and L. Mahadevan Development 2022. 149:None-None; doi: 10.1242/dev.199423 Download Original Video