Handout photo relased by CONICET and MACN (Museo Argentino de Ciencias Naturales) researchers Carlos Taboada and Julian Faivovich on March 16, 2017 in Buenos Aires of a fluorescent polka-dot tree frog (Hypsiboas punctatus) that lives in South America. Argentine and Brazilian scientists discovered the first case of natural fluorescence in amphibians in the tree-frog. (Photo by C. Taboada/J. Faivocich/AFP Photo)
