These Frogs Hide Thanks to Transparent Skin

Hanging out in the trees of Central and South America are some frogs with pretty unusual coloration. Which is to say, parts of them have no color at all. Their bellies are completely see-through!

Hosted by: Stefan Chin

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Sources:
https://kuscholarworks.ku.edu/bitstream/handle/1808/13694/Trueb_et_al_2009.pdf?sequence=1&isAllowed=y
https://www.researchgate.net/publication/232701398_Revision_of_the_characters_of_Centrolenidae_Amphibia_Anura_Athesphatanura_with_comments_on_its_taxonomy_and_the_description_of_new_taxa_of_glassfrogs [PDF]
https://www.pnas.org/content/117/23/12885
https://www.smithsonianmag.com/smart-news/scientists-discover-reason-behind-glass-frogs-translucent-skin-180974979
https://www.researchgate.net/publication/22295078_Infrared_reflectance_in_leaf_sitting_Neotropical_frogs [PDF]

Images:
https://www.istockphoto.com/photo/glass-frog-gm108314019-12391329
https://www.storyblocks.com/video/stock/glass-frog-hyalinobatrachium-sp-e5_vtj5igil4gm942
https://www.storyblocks.com/video/stock/glass-frog-hyalinobatrachium-sp-4iw-m_jseil64030w
https://www.istockphoto.com/photo/the-yellow-flecked-glass-frog-cochranella-albomaculata-a-bright-green-tree-frog-with-gm1281518091-379535277
https://www.istockphoto.com/photo/glass-frog-cochranella-granulosa-from-panama-gm1190223117-337323139
https://www.istockphoto.com/photo/glass-frog-gm118081891-9290005
https://www.istockphoto.com/photo/closeup-nature-view-of-green-leaf-background-gm1208290498-349186791
https://www.istockphoto.com/photo/close-up-of-a-red-tailed-hawk-buteo-jamaicensis-gm157613274-13139892
https://www.istockphoto.com/photo/reticulated-glass-frog-with-eggs-selva-verde-costa-rica-gm1087251912-291701914
https://www.istockphoto.com/photo/fleischmanns-glass-frog-backlit-on-leaf-la-fortuna-costa-rica-gm916811130-252258715
https://www.istockphoto.com/photo/layers-of-leaves-with-a-tree-frog-silhouette-gm155350410-19113682
https://www.istockphoto.com/vector/summer-season-exotic-leaves-vector-collection-isolated-on-transparent-gm1156126477-314989631
https://www.istockphoto.com/vector/paper-art-of-tropical-leaf-on-black-gm1184781852-333642636
https://www.istockphoto.com/vector/frog-jumping-isolated-frog-jumping-on-white-background-gm1188043399-335848055
https://www.istockphoto.com/photo/wild-common-buzzard-in-flight-catching-with-claws-isolated-on-white-background-gm1194687298-340277836
https://www.istockphoto.com/photo/carpet-chameleon-in-mantadia-national-park-gm498559370-79724715
https://www.istockphoto.com/photo/glasswing-butterfly-on-a-green-leaf-gm1189895811-337078037