To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 3 Heartbeat in WT Tek (Tie2) is not required for cardiovascular development in zebrafish Zhen Jiang, Claudia Carlantoni, Srinivas Allanki, Ingo Ebersberger, and Didier Y. R. Stainier Development 2020. 147:None-None; doi: 10.1242/dev.193029 Download Original Video