Amphibians like glass frogs become see-through whilst sleeping - and now scientists have discovered how. The creatures hide 90 per cent of their red blood cells in their liver, which is mirror-coated, ...

DURHAM, N.C. -- Glassfrogs make themselves transparent while they rest by taking red blood cells from circulation and concealing them in their livers. A multi-disciplinary team of biologists and ...

Glassfrogs are some of the only land-based vertebrates that can achieve transparency, which has made them a target for study. Scientists have finally unravelled the mystery behind a glassfrog's ...