Morley Read / Slow motion clip of a Leaf frog (Cruziohyla craspedopus) jumping from a Calathea plant, Amazon rainforest, Ecuador. (non-ex)

Morley Read / Slow motion clip of a Leaf frog (Cruziohyla craspedopus) walking, Ecuador. (non-ex)

Morley Read / Slow motion clip of a Leaf frog (Cruziohyla craspedopus) turning around, Ecuador. (non-ex)

Morley Read / Slow motion clip of a Leaf frog (Cruziohyla craspedopus) leaping, Ecuador. (non-ex)

Morley Read / Close-up of an Amazon leaf frog (Cruziohyla Craspedopus) tadpole developing in egg, Ecuador. (non-ex)

Bence Mate / Portrait of Splendid leaf frog (Agalychnis calcarifer) climbing vegetation, Santa Rita, Costa Rica

Bence Mate / Shadow outline of Splendid leaf frog (Agalychnis calcarifer) through leaf, Santa Rita, Costa Rica

Piotr Naskrecki / Splendid Leaf Frog (Agalychnis calcarifer) a rarely seen species associated with natural forest gaps, Costa Rica

Pete Oxford / Leaf frog (Agalychnis craspedopus) Yasuni NP, Ecuador, South America

Pete Oxford / Leaf frog walking across leaves {Agalychnis calcarifer} Ecuador

Pete Oxford / Two Leaf-frogs on branch {Agalychnis craspedopus} Amazon rainforest, Ecuador, South America

Pete Oxford / Leaf Frogs Yasuni NP, Ecuador (Agalychnis craspedopus) South-America

Pete Oxford / Leaffrogs in tropical rainforest, Yasuni NP, Ecuador (Agalychnis craspedopus) South America

Morley Read / Close-up of Leaf frog (Cruziohyla craspedopus) tadpoles developing within an egg membrane, blood is circulating in the gills. Pastaza Province, Ecuador. (non-ex)

Morley Read / Close-up of Leaf frog (Cruziohyla craspedopus) tadpoles developing within an egg membrane, blood is circulating in the gills. Pastaza Province, Ecuador. (non-ex)

Morley Read / Leaf frog (Cruziohyla craspedopus) blinking its eyes, Amazon rainforest, Napo Province, Ecuador. (non-ex)

Morley Read / Two Leaf frogs (Cruziohyla craspedopus), with a rainforest stream in background, Napo Province, Ecuador. (non-ex)

Morley Read / Two Leaf frogs (Cruziohyla craspedopus), with a rainforest stream in background, Napo Province, Ecuador. (non-ex)

Morley Read / Leaf frog (Cruziohyla craspedopus) landing on a leaf in the rainforest understory, Napo Province, Ecuador. (non-ex)

Morley Read / Slow motion clip of a Leaf frog (Cruziohyla craspedopus) jumping from a leaf, Amazon rainforest, Ecuador. (non-ex)

Morley Read / Slow motion clip of a Leaf frog (Cruziohyla craspedopus) walking, Ecuador. (non-ex)

Morley Read / Slow motion clip of a Leaf frog (Cruziohyla craspedopus) leaping, Ecuador. (non-ex)

Melvin Grey / Splendid leaf frog (Cruziohyla calcarifier) male Atlantic Lowland Rainforest, Costa Rica. Controlled conditions.

Melvin Grey / Splendid leaf frog (Cruziohyla calcarifier) male Atlantic Lowland Rainforest, Costa Rica. Controlled conditions.

Lucas Bustamante / Fringed leaf frog (Cruziohyla craspedopus) on branch, Yasuni National Park, Orellana, Ecuador.

Phil Savoie / Splendid leaf frog (Cruziohyla calcarifer) La Selva Field Station, Costa Rica.

Phil Savoie / Splendid leaf frog (Cruziohyla calcarifer) La Selva Field Station, Costa Rica.

Phil Savoie / Splendid leaf frog (Cruziohyla calcarifer) La Selva Field Station, Costa Rica.

Phil Savoie / Splendid leaf rog (Cruziohyla calcarifer) La Selva Field Station, Costa Rica.

Phil Savoie / Splendid leaf frog (Cruziohyla calcarifer) La Selva Field Station, Costa Rica.

Edwin Giesbers / Splendid leaf frog (Cruziohyla calcarifer) leg and foot detail, captive

Edwin Giesbers / Splendid leaf frog (Cruziohyla calcarifer) overhead view, captive

Edwin Giesbers / Splendid leaf frog (Cruziohyla calcarifer) overhead view, captive

Edwin Giesbers / Splendid leaf frog (Cruziohyla calcarifer) captive

Edwin Giesbers / Splendid leaf frog (Cruziohyla calcarifer) captive

Edwin Giesbers / Splendid leaf frog (Cruziohyla calcarifer) captive

Edwin Giesbers / Splendid leaf frog (Cruziohyla calcarifer) captive

Edwin Giesbers / Splendid leaf frog (Cruziohyla calcarifer) crawling along, captive

Edwin Giesbers / Splendid leaf frog (Cruziohyla calcarifer) foot detail, captive

Alex Hyde / Splendid leaf frog (Cruziohyla calcarifer) in rainforest tree at night, Central Caribbean foothills, Costa Rica.

Edwin Giesbers / Fringed leaf frog (Cruziohyla craspedopus) captive, occurs in Amazonian South America.

Edwin Giesbers / Fringed leaf frog (Cruziohyla craspedopus) captive, occurs in Amazonian South America.

Pete Oxford / Splendid Leaf Frog (Agalychnis calcarifer), native to South America

Pete Oxford / Splendid Leaf Frog (Agalychnis calcarifer) climbing, native to South America

Pete Oxford / Splendid Leaf Frog (Agalychnis calcarifer) climbing, native to South America

Pete Oxford / Splendid Leaf Frog (Agalychnis calcarifer), native to South America

Pete Oxford / Splendid Leaf Frog (Agalychnis calcarifer), native to South America

Pete Oxford / Splendid Leaf Frog (Agalychnis calcarifer), native to South America

Pete Oxford / Splendid Leaf Frog (Agalychnis calcarifer) climbing, native to South America

Pete Oxford / Splendid Leaf Frog (Agalychnis calcarifer), native to South America

Pete Oxford / Splendid Leaf Frog (Agalychnis calcarifer), native to South America

Pete Oxford / Splendid Leaf Frog (Agalychnis calcarifer), native to South America

Pete Oxford / Splendid Leaf Frog (Agalychnis calcarifer), native to South America

Bence Mate / Head portrait of Splendid leaf frog (probably Cruziohyla sylviae, formerly Cruziohyla calcarifer) Santa Rita, Costa Rica

Bence Mate / Head portrait of Splendid leaf frog (Agalychnis calcarifer) Santa Rita, Costa Rica

Ingo Arndt / Splendid Leaf Frog (Agalychnis calcarifer) walking on branch, Costa Rica

Hiroya Minakuchi / Splendid Leaf Frog (Agalychnis calcarifer) in defensive posture, Costa Rica

Hiroya Minakuchi / Splendid Leaf Frog (Agalychnis calcarifer), Costa Rica

Michael & Patricia Fogden / Splendid Leaf Frog (Agalychnis calcarifer), La Selva Biological Research Station, Costa Rica

Michael & Patricia Fogden / Splendid Leaf Frog (Agalychnis calcarifer), La Selva Biological Research Station, Costa Rica

Thomas Marent / Splendid Leaf Frog (Agalychnis calcarifer) portrait, Siquirres, Costa Rica

Piotr Naskrecki / Splendid Leaf Frog (Agalychnis calcarifer) rarely seen species associated with natural forest gaps, Costa Rica

Pete Oxford / Leaf frog {Agalychnis calcarifer} Esmeraldas, Ecuador

Pete Oxford / Leaf frog {Agalychnis calcarifer} Esmeraldas, Ecuador

MORLEY READ / Leaf frog {Agalychnis craspedopus} Yasuni NP, Ecuador

Phil Savoie / Rainforest tree frog on leaf (probably Cruziohyla sylviae, formerly Cruziohyla calcarifer) Costa Rica, captive

Phil Savoie / Rainforest tree frog on leaf (probably Cruziohyla sylviae, formerly Cruziohyla calcarifer) Costa Rica, captive

Pete Oxford / Leaf frog (Agalychnis craspedopus) Yasuni NP, Ecuador, South America

Philippe Clement / Barred / Splendid Leaf Frog (probably Cruziohyla sylviae, formerly Cruziohyla calcarifer) resting on palm leaf, Costa Rica.

Philippe Clement / Barred / Splendid Leaf Frog (probably Cruziohyla sylviae, formerly Cruziohyla calcarifer) on palm leaf, Costa Rica.

Philippe Clement / Barred / Splendid Leaf Frog (probably Cruziohyla sylviae, formerly Cruziohyla calcarifer) on palm leaf, Costa Rica.

Pete Oxford / Leaf frog {Agalychnis calcarifer} Ecuador

Pete Oxford / Splendid Leaf Frog (Agalychnis calcarifer) climbing on plant stem, northwestern Ecuador

Pete Oxford / Splendid Leaf Frog (Agalychnis calcarifer) climbing on plant stem, northwestern Ecuador

Pete Oxford / Splendid Leaf Frog (Agalychnis calcarifer) climbing on plant stem, northwestern Ecuador

Pete Oxford / Splendid Leaf Frog (Agalychnis calcarifer) sitting on plant stem, Esmeraldas, northwestern Ecuador

Pete Oxford / Tree frog showing toe suction pads, Esmeraldas, Ecuador

Phil Savoie / Splendid leaf frog (Cruziohyla calcarifer) La Selva Field Station, Costa Rica.

Phil Savoie / Splendid leaf rog (Cruziohyla calcarifer) La Selva Field Station, Costa Rica.

Pete Oxford / Splendid Leaf Frog (Agalychnis calcarifer), native to South America

Hiroya Minakuchi / Splendid Leaf Frog (Agalychnis calcarifer) in defensive posture, Costa Rica

Michael & Patricia Fogden / Splendid Leaf Frog (Agalychnis calcarifer), La Selva Biological Research Station, Costa Rica

Ken Preston-Mafham/PREMAPHOTOS / Barred / Splendid leaf frog (probably Cruziohyla sylviae, formerly Cruziohyla calcarifer) walking accross a torn leaf in the rainforests of Costa Rica

Ken Preston-Mafham/PREMAPHOTOS / Barred / Splendid leaf frog (probably Cruziohyla sylviae, formerly Cruziohyla calcarifer) walking accross a torn leaf in the rainforests of Costa Rica

Emanuele Biggi / Fringed leaf frog (Cruziohyla craspedopus) tadpole swimming up to waters surface as another rests in dirt below. Captive.

Emanuele Biggi / Fringed leaf frog (Cruziohyla craspedopus) tadpole resting on sediment. Captive.

Emanuele Biggi / Fringed leaf frog (Cruziohyla craspedopus) frogspawn with developing tadpoles. Captive.

Emanuele Biggi / Fringed leaf frog (Cruziohyla craspedopus) froglet resting on leaf whilst undergoing metamorphosis. Captive.

Lucas Bustamante / Fringed leaf frog (Cruziohyla craspedopus) resting on plant stem at night, Yasuni National Park, Orellana, Ecuador.

Emanuele Biggi / Sylvia's tree frog (Cruziohyla sylviae), Veragua rainforest, Costa Rica

Gil Wizen / Sylvia's tree frog (Cruziohyla sylviae) climbing on a moss-covered branch in the rainforest, Guayacan Rainforest Reserve, Limon Province, Costa Rica.

Gil Wizen / Fringe tree frog (Cruziohyla craspedopus) juvenile, head portrait, Jatun Sacha Biological Station, Napo province, Amazon basin, Ecuador.

Guy Edwardes / Splendid treefrog (Cruziohyla calcarifer) on Swiss cheese plant (Monstera deliciosa), Lowland rainforest, Costa Rica.

Morley Read / Male Fringed leaf frog (Cruziohyla craspedopus) perched in understory of lowland tropical rainforest, Napo province, Ecuador.

Morley Read / Male Fringed leaf frog (Cruziohyla craspedopus) calling while sitting on a fern leaf in understory of lowland tropical rainforest, Napo province, Ecuador, May.

Morley Read / Male Fringed leaf frog (Cruziohyla craspedopus) shedding skin, pulling off old epidermis with feet. Perched in the understory of lowland tropical rainforest, Napo province, Ecuador, May.