Biofluorescence #remix for remixworx, images and text from The Covert World of Fish Biofluorescence: A Phylogenetically Widespread and Phenotypically Variable Phenomenon by John S. Sparks, Robert C. Schelly, W. Leo Smith, Matthew P. Davis, Dan Tchernov, Vincent A. Pieribone and David F. Gruber Water photo by Ditte Strebel source files