This is one of my "isn't evolution amazing" posts. #evolution #glassfrogs #transparency #camofluage #wherestheblood #itshidingintheliver
https://pratt.duke.edu/about/news/glassfrogs-hide-red-blood-cells-their-liver-become-transparent#:~:text=Glassfrogs%20make%20themselves%20transparent%20while,23%20in%20the%20journal%20Science
"Glassfrogs make themselves transparent while they rest by taking red blood cells from circulation and concealing them in their livers...“When glassfrogs are resting, their muscles and skin become transparent, and their bones, eyes and internal organs are all that’s visible,”