Movie 1.

Real-time live imaging of brain and eye of RARE:YFP; mpeg1:mCherry double transgenic embryo at 3 dpf. Microglia (mCherry+) migrate through the active RA signaling zone (YFP+, green) but do not express the RARE:YFP reporter. Outlines mark the eye and lens. Imaging over a total of 8 hours, with z stacks acquired every 5 minutes. Timestamp in upper left is in hours:min:sec.