Dec 23, 2022 23:00:00 A transparent 'glass frog' is transparent by hiding about 90% of red blood cells in the liver ...

Glass frogs can turn on their transparent appearance by hiding 90% of their red blood cells in their liver during sleep, a new study in Science reported Thursday. Most animals would die if they ...

Citation: Yellow food dye can make living tissue transparent—it could improve cancer treatment, blood draws and tattoo removal (2024, September 8) retrieved 18 July 2025 from https ...

A kind of transparent frog achieves near invisibility by hiding its red blood cells during the day, scientists found. "I had never seen anything like that," researcher Carlos Taboada says.

Glassfrogs can render themselves nearly invisible while they sleep with a unique trick; they pack nearly 90% of their red blood into one of their organs.