While their genaral color is green/lime green like most frogs. The abdominal side is transparent. The Internal organs, and gastrointestianl tract are visible through the skin. First discovered in 1872, they were first placed with tree frogs in the genera Hyella. It wasn't until 1951 that the family Centrolenidae was created. That family is now host to over 50 species of glass frogs. Found primarily along rivers and streams in Central and South America, Glass frogs are small, between 1.2 and 3.0 inches in lengh.
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