A Fully Transparent Rain Forest Frog!

The glass frogs (or glassfrogs) are frogs of the amphibian family Centrolenidae (order Anura). While the general background coloration of most glass frogs is primarily lime green, the abdominal skin of some members of this family is translucent. The internal viscera, including the heart, liver, and gastrointestinal tract, are visible through this translucent skin, hence the common name.

Glass frogs are generally small, ranging from 3 to 7.5 cm (1.2 to 3.0 in) in length. They are known to eat their own young. They are green in color over most of their bodies, save for the skin along the lower surface of the body, which is translucent.