To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 3 Opa1 is required for neutrophil motility in zebrafish.Time-lapse images of neutrophil migration at the head mesenchyme and individual neutrophils were tracked for velocity quantification. Scale bar: 50 μm. J Cell Sci ; doi: 10.1242/jcs.248880 Download Original Video