Argentina. Biology Glass frogs are mostly arboreal. They live along rivers and streams during the breeding season, and are particularly diverse in montane cloud forests of Central and South America, although some species occur also in Amazon and Chocóan rainforest and semideciduous forests. Hyalinobatrachium valerioi glass frogs are carnivores, their diet mainly including small insects like crickets, moths, flies, spiders, and other smaller frogs. The eggs are usually deposited on the leaves of trees or shrubs hanging over the running water of mountain streams, creeks, and small rivers. One species leaves its eggs over stones close to waterfalls. The method of egg-laying on the leaf varies between species. The males usually call from leaves close to their egg clutches. These eggs are less vulnerable to predators than those laid within water, but are affected by the parasitic maggots of some fly species. Some glass frogs show parental care: in many species, glass frog females brood their eggs during the night the eggs are fertilized, which improves the survival of the eggs, while in almost a third of species, glass frog males stay on guard for much longer periods. After they hatch, the tadpoles fall into the waters below. The tadpoles are elongated, with powerful tails and low fins, suited for fast-flowing water. Outside of the breeding season, some species live in the canopy. References Kubicki, Brian. Ranas De Vidrio – Costa Rica – Glass Frogs (2007). In Spanish and English. .. Barnet et al. (2020). Imperfect transparency and camouflage in glass frogs. PNAS. 117, 23. External links Amphibian Species of the World Centrolenidae in AmphibiaWeb Ecuador Centrolenidae in AmphibiaWeb Glassfrogs (Centrolenidae) Project Centrolenidae in the Tree of Life site Centrolenidae in ITIS Research on Centrolenidae Centrolenidae in Livingunderworld.org Centrolenidae in Animal Diversity Web Centrolenidae en InfoNatura Fleischmann’s glass frog at National Geographic Various Frog Species Neotropical realm fauna