·1 хв читання · 91 слово·👁 45.0K↗ 106
Glass frog turning transparent as it sleeps
The researchers found that the frogs maintained roughly the same level of transparency while awake, calling, exercising, and under anesthetic.
However, when they were sleeping, the frogs were between 34 and 61 percent more transparent than during waking activity.
Optical spectroscopy on 13 frogs confirmed that a decrease in circulating red blood cells is the reason for the increased transparency on their undersides. Red blood circulation decreased by up to 89 percent, and the red blood cell signal was concentrated in the liver.
