Movie 2.

Microglia migration and process extension dynamics in the developing brain of a mounted larva. Single microglial migration and the elongation and retraction of its processes, labelled by the Tg(fmpeg1.1:GFPCAAX) reporter (grey), were imaged for 12 hours. Time interval: 10 minutes. Acquisition started at 72 hpf. Scale bar 10 μm.