Movie S6.

Live-imaging of an endothelial tip cell in Myh9 fl/wt::PDGFBiCRE::R26mTmG P6 mouse retina, showing filopodia membrane ruffling, filopodia and dactylopodia dynamics. Red arrowheads indicate filopodia initiation; green arrowheads indicate filopodia extension; purple arrowheads indicate filopodia membrane ruffling; blue arrowheads indicate filopodia-to-dactylopodia conversion.