Movie 5, related to Figure 4.

Both HCs and SCs exhibit cellular protrusions.
Considerable protrusive activity of both HCs and SCs is apparent in a Sox2^CreERT2; R26R^mT-mG explant imaged at E15. mEGFP in scattered cells is shown in grayscale. XY (top) and XZ (bottom) projections of confocal Z-stacks of a 10-hour time-lapse sequence. Images were captured at 5 min. intervals.