Sleeping glass frogs hide by storing most of their blood in their liver

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

A transparent frog hides its red blood cells while sleeping : NPR

Watch a glass frog hide away its blood while sleeping

Glassfrogs hide red blood cells in their liver to become transparent

A new device helps frogs regrow working legs after an amputation

For glass frogs, moms matter after all

Farm chemicals can indirectly hammer frogs

Frog skin cells turned themselves into living machines

Sea life stars in museum's glass menagerie

A transparent frog hides its red blood cells while sleeping : NPR