To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 3 Time-lapse of lungs isolated at E11.5 and cultured in the presence of cyclopamine (1 μM) for 24 hr. Smooth muscle differentiation shapes domain branches during mouse lung development Katharine Goodwin, Sheng Mao, Tristan Guyomar, Erin Miller, Derek C. Radisky, Andrej Košmrlj, and Celeste M. Nelson Development 2019. 146:None-None; doi: 10.1242/dev.181172 Download Original Video