Glass frogs snoozing among leaves blend in by hiding almost all their red blood cells in their liver until the tiny animals wake up.

Suctioned to a leaf bottom in the rainforests of South and Central America, glass frogs seem to vanish in plain sight—the transparent skin of their undersides erasing the hard edges of their ...

This photo provided by researchers in December 2022 shows a glass frog, strict leaf dwelling frogs, that sleep, forage, fight, mate, and provide (male) parental care on leaves over tropical ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Round, colorless-glass, domed flower ...

Researchers say the have solved the mystery of how glass frogs become transparent while sleeping.

This photo provided by researchers in December 2022 shows glass frogs, strict leaf dwelling frogs, that sleep, forage, fight, mate, and provide (male) parental care on leaves over tropical streams ...

A species of glass frogs found in South and Central America has the rare ability to turn its transparent appearance on and off.

The frogs also shrink and pack together most of their internal organs, Yao said. The research "beautifully explains" how "glass frogs conceal blood in the liver to maintain transparency," said Juan ...

A species of glass frogs found in South and Central America has the rare ability to turn its transparent appearance on and off.

A species of glass frogs found in South and Central America has the rare ability to turn its transparent appearance on and off.