Using light and ultrasound imaging technology, researchers have discovered how some frogs found in South and Central America have the rare ability to turn on and off their nearly transparent appearance.
Found: The World's First Known Fluorescent Frog - Atlas Obscura
Milk Frog
Glass act: Scientists reveal secrets of frog transparency
Mentos Geyser Experiment - Mentos & Coke Experiment
Secret of how frogs turn transparent revealed: They hide their blood - India Today
How See-Through Glass Frogs Hide Their Red Blood From Predators - The New York Times
animals PBS NewsHour
The Next Generation of a Rare Frog Captured in a Poetic Portrait - Atlas Obscura
The Secret to Glass Frog Transparency Revealed - Ripley's Believe It or Not!
News Duke Institute for Brain Sciences
How do glass frogs turn transparent? Secret discovered by sc