Transparency is a trait shared by all living glass frogs. In some species though, such as the Condor Glass Frog (Centrolene condor), the ventral peritoneum is white anteriorly, obscuring the heart and liver. Photo by Alejandro Arteaga.
Tree Frog ♥ They are called the Coqui frog in Puerto Rico because of their call. Co-KEY __ Note: This is not a coquí. This is the red-eyed tree frog (Agalychnis callidryas). –– Photo: Red eyed tree frog by Peter Krejzl