The red-eyed tree frog has a delicate build. It has a slender body and large toe pads that enable it to adhere to smooth surfaces such as leaves and branches.
During the breeding season, large groups of males gather together on branches overhanging water. They croak in a collective chorus and establish individual territories. The females climb down from the tree tops. When mating, the male grasps onto the back of the female and holds on to the female by clasping his arms around her stomach (this reproductive behavior is referred to as amplexus). The female then climbs down to the water (with the male on her back) and takes up water. She then climbs back up to lay her clutch of eggs on the underside of a leaf. As she does so, the male fertlizes the eggs.
Red-eyed tree frogs feed on insects such as crickets, moths, flies, and grasshoppers.