To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 14. Bright field imaging reveals higher blood flow in vessels of the interlaced plexus when compared with the bone enclosed artery. Brightfield videos of circulating red blood cells in the interlaced plexus. Fish is oriented with anterior to the left. Temporally and regionally distinct morphogenetic processes govern zebrafish caudal fin blood vessel network expansion Elvin V. Leonard, Sana Safatul Hasan, and Arndt F. Siekmann Development 2023. 150:None-None; doi: 10.1242/dev.201030 Download Original Video