Movie 1.

Zebrafish skin T cells become sessile over larval development Four representative images of T cell migration in the ventral skin of the caudal peduncle in tg(lck:GFP) zebrafish at 12, 17, 22, and 27 dpf showing T cells becoming less motile over development. Gray = DIC. Time in mm:ss. Scale bar = 100 μm.