To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Supp.movie 1 Time lapse movie of a control micromass culture stained with Cell Tracker dye. xyz views of Z-scan stacks imaged every 5 minutes during an 84hr culture. 20X magnification. Tbx4 function during hindlimb development reveals a mechanism that explains the origins of proximal limb defects Veronique Duboc, Fatima A. Sulaiman, Eleanor Feneck, Anna Kucharska, Donald Bell, Muriel Holder-Espinasse, and Malcolm P. O. Logan Development 2021. 148:None-None; doi: 10.1242/dev.199580 Download Original Video