To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 1 Three cardiac cycles of 52 hpf WT and wwtr1 mutant hearts. Actual time scale (in seconds) in top left corners. The Hippo pathway effector Wwtr1 regulates cardiac wall maturation in zebrafish Jason K. H. Lai, Michelle M. Collins, Veronica Uribe, Vanesa Jiménez-Amilburu, Stefan Günther, Hans-Martin Maischein, and Didier Y. R. Stainier Development 2018. 145:None-None; doi: 10.1242/dev.159210 Download Original Video