Time-lapse movie of R26-PHA7-EGFP embryo starting from E6.25: EmVE cells (related to Figure 4D_Em) Time-lapse movie of Z-stack images of R26-PHA7-EGFP embryo from E6.25. Tracked cells migrate from the distal tip to the anterior (colored dots). The trajectories are shown in Fig. 4D_Em. Anterior is towards the left.