To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 2 Celsr1 is required for the generation of polarity at multiple levels of the mouse oviduct D. Shi, K. Komatsu, M. Hirao, Y. Toyooka, H. Koyama, F. Tissir, A. M. Goffinet, T. Uemura, and T. Fujimori Development 2014. 141:4558-4568; doi: 10.1242/dev.115659 Download Original Video