To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 2 Convergence and extension of spinal cord fated photo-labeled cells at 50% epiboly Neuromesodermal progenitors are a conserved source of spinal cord with divergent growth dynamics Andrea Attardi, Timothy Fulton, Maria Florescu, Gopi Shah, Leila Muresan, Martin O. Lenz, Courtney Lancaster, Jan Huisken, Alexander van Oudenaarden, and Benjamin Steventon Development 2018. 145:None-None; doi: 10.1242/dev.166728 Download Original Video