Pete Oxford / Cloud Forest Tree Frog (Hyla pellucens) sitting on edge of leaf, Choco Rainforest, northwest Ecuador

Lucas Bustamante / Palmar tree frog (Boana / Hypsiboas pellucens) underside seen through glass showing sticky / suction pads on toes, San Lorenzo, Esmeraldas, Ecuador, Controlled conditions.

Lucas Bustamante / Palmar tree frog (Boana / Hypsiboas pellucens) on leaf, Canande, Esmeraldas, Ecuador.

Lucas Bustamante / Palmar tree frog (Boana / Hypsiboas pellucens) on plant stem, Mindo, Pichincha, Ecuador.

Melvin Grey / Palm treefrog (Hypsiboas pellucens) adult, Mindo, Ecuador. June.

James Christensen / Cloud Forest Tree Frog (Hyla pellucens), Andes, Ecuador

James Christensen / Cloud Forest Tree Frog (Hyla pellucens) against window, feeding on insects, western slope of the Andes Cloud Forest, Mindo, Ecuador

James Christensen / Cloud Forest Tree Frog (Hyla pellucens) portrait, western slope of the Andes Cloud Forest, Mindo, Ecuador

Pete Oxford / Tree frog {Hyla pellucens} Mindo Cloud Forest, Ecuador

Pete Oxford / Tree frog {Hyla pellucens} Mindo Cloud Forest, Ecuador

Pete Oxford / Cloud Forest Tree Frog (Hyla pellucens) camouflaged on leaf, Mindo cloud forest, Ecuador

Pete Oxford / Cloud Forest Tree Frog (Hyla pellucens) balancing on flower stem, Mindo cloud forest, Ecuador

Doug Wechsler / Palmar treefrog (Hypsiboas pellucens) Buenaventura Reserve, Ecuador.