This Frog Hides Its Blood to Disappear

Glass frogs can become unusually transparent while resting by moving most of their circulating red blood cells into the liver. Reducing visible blood helps make the animal harder to see. Editorial note: this is a temporary state documented in particular glass-frog biology; it does not mean every transparent-looking frog is invisible or bloodless. Evidence status: ESTABLISHED Sources: • U.S. National Library of Medicine — https://pubmed.ncbi.nlm.nih.gov/36548427/ • American Museum of Natural History — https://www.amnh.org/explore/news-blogs/research-posts/glass-frogs-transparency Visual disclosure: AI-assisted cinematic reconstructions illustrate the published mechanism and ecological context; they are not direct laboratory recordings. NOCTICOSM — Science at the Edge of Reality. #GlassFrog #Biology #AnimalScience #Nature #Science #NOCTICOSM