Melanophores of Zebrafish

Aggregation of pigment granules in fish melanophores. Black pigment granules were aggregated by stimulation of epinephrine in a zebrafish. The movie is played at 4× speed. Reference Proc Natl Acad Sci U S A. 2013 October 8; 110(41): 16408--16413. http://www.pnas.org/content/early/2013/09/18/1306281110.short