A new frog species has been discovered hopping around South America - with nothing to hide. The Guajira Giant Glass Frog lives on an isolated mountain range in Colombia. It's described as a ...

Glass frogs have the rare ability to turn on and off their nearly transparent appearance, researchers report Thursday in the journal Science. Ernesto Benavides/Getty Images Now you see them, now you ...

When glass frogs emerge during the rainy season, researchers at the Smithsonian Tropical Research Institute follow their migration out of the forest and along streams. These transparent leaf-lying ...

Rainy season is also mating season for the glass frogs of Panama. First, the female collects water from a leaf in order to hydrate the eggs inside her. She then releases them for the male to fertilize ...

The see-through amphibians have an amazing strategy for hiding while asleep—one that could advance our understanding of blood clotting. The organs and developing eggs of a female glass frog, ...

As tiny glass frogs fall asleep for the day, they take almost 90 percent of their red blood cells out of circulation. The colorful cells cram into hideaway pockets inside the frog liver, which ...

There’s much more to frogs than hopping and ribbiting. Some frogs swallow their tadpoles and later cough tiny, fully formed frogs out of their mouths. Some freeze in the winter, only to come back to ...

A new frog species has been discovered hopping around South America - with nothing to hide. The Guajira Giant Glass Frog lives on an isolated mountain range in Colombia. It's described as a ...