Here’s another fascinating look at Costa Rica’s transparent glass frogs. The image above was captured by photographer Nic Reusens with a pane of glass and a twin diffused flash to capture the natural effect of the stunning animal. Continue reading for a video, more pictures, and additional information.

Here’s what Nic Resusens has to say about the frogs: “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 difficult to find and collect, due not only to their small size and color, but also because of the extreme areas they sometimes inhabit.”