Where does this come from, and can I check it?

Translucent ventral abdominal skin shows working internal organs. The figure is taken from National Geographic, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

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Yes. It sits on the Animals shelf, one of 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.

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The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.

Mondo Knows Facts

Glass frogs have transparent skin that reveals their beating heart

Translucent ventral abdominal skin shows working internal organs.

Native to Central and South American rainforests, glass frogs feature transparent underside skin. Anyone looking from below can clearly observe their beating heart, digestive tract, and liver. Green dorsal skin mirrors leaf coloration to provide camouflage.

Cochranella pulverata Powdered glass frog — Brian Gratwicke · CC BY 2.0 · licence · source

Where this comes from

National Geographic

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Tags: glass-frog, amphibian, camouflage

Glass frogs have transparent skin that reveals their beating heart: the short answers

Where does this come from, and can I check it?: Translucent ventral abdominal skin shows working internal organs. The figure is taken from National Geographic, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a animals fact?: Yes. It sits on the Animals shelf, one of 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.