Movie 2.

Formation and arterial connection of the primitive pectoral artery. Time-lapse confocal imaging of a Tg(kdrl:egfp)^s843 transgenic zebrafish from 34–50 hpf, showing formation of the primary arc of the primitive pectoral artery and its connection to the dorsal aorta. The movie shows the complete sequence for the images shown in Fig. 3D–F and Fig. 4D–F.