Glass frogs are named for their translucent skin, which helps display their internal organs from underneath (you can even watch their hearts beat). Although there are more than 150 different glass ...

The American green tree frog is a staple of summer nights in the U.S. South, where its groaning call echoes through countless swamps, forests, fields, and backyards. Yet even for many people who share ...

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 ...

There have been a total of 149 species of glass frogs so far discovered, with 14 species found in Costa Rica. The most recent of these was discovered only in 2015 and are notable for their translucent ...