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 ...

Glass frogs also have a unique circulatory system, with veins that are closer to the surface of the skin. This allows the oxygen-rich blood to be visible through the skin ...

The birth of 33 frogs at the London Zoo has been hailed as a “landmark moment” in the ongoing battle to save an endangered species that was first described by Charles Darwin during his epic voyage on ...

In field studies, a US expert studied the glass frog (Sachatamia orejuela), which is found on slippery rocky surfaces near the water. Video footage reveals a male specimen showing off with a ...