Phil Savoie / Red eyed tree frog on heliconia (Agalychnis callidryas)

Piotr Naskrecki / Three-striped Poison Dart Frog (Ameerega trivittata) male carrying tadpoles, Suriname

Piotr Naskrecki / Three-striped Poison Dart Frog (Ameerega trivittata) male carrying tadpoles, Suriname

Dale Sutton / 2020VISION / Common frog (Rana temporaria) leaping into a pond, controlled conditions, UK.

Paul D Stewart / Landscape of the Triassic coastal environment with reconstructions of dinosaurs and marine reptiles, 'Dr. Schubert's Naturgeschichte - Geologie, Mineralreich, Palaontologie'. Published in Stuttgart 18...

Mark Hamblin / 2020VISION / Common frog (Rana temporaria) male calling, in garden pond in spring, Warwickshire, UK

Linda Pitkin / 2020VISION / Common toad (Bufo bufo), in a pond, with toad spawn and frogspawn, in the mating season, England: Surrey, Coldharbour, on outskirts of village, March, spring,

Piotr Naskrecki / Giant Monkey Frog (Phyllomedusa bicolor) female watching an approaching male, Surinam

Bert Willaert / Juvenile South American Common / Crested Forest Toad 1+Rhinella margaritifera 'complex'+2. Ecuador, South America.

Bert Willaert / Trivandrum / Golden Frog (Hylarana aurantiaca) looking upwards. Western Ghats, India.

Piotr Naskrecki / Cross Frog (Oreophryne sp) male protecting his clutch of eggs, Papua New Guinea

Piotr Naskrecki / Ground Frog (Platymantis boulengeri) female protecting her clutch of eggs, Papua New Guinea

Piotr Naskrecki / Cross Frog (Oreophryne sp) male from a newly discovered species protecting his clutch of eggs, Papua New Guinea

Piotr Naskrecki / Cross Frog (Oreophryne sp), newly discovered species, eggs, Papua New Guinea

Rolf Nussbaumer / Cane Toad / Marine Toad / Giant Toad (Bufo marinus) adult jumping in Dogweed (Dyssodia pentachaeta) field. Laredo, Webb County, South Texas, USA, April.

Nature Production / Japanese tree frog (Hyla japonica) hanging from Pumpkin flower, Japan

Nature Production / Japanese tree frog (Hyla japonica) climbing up onto hydrangea leaf, Fukuoka, Japan, August, sequence 1/3

Thomas Marent / Dyeing Poison Frog (Dendrobates tinctorius), Kaw, French Guiana

Thomas Marent / Alpine Newt (Ichthyosaura alpestris) male, Switzerland

Thomas Marent / Alpine Newt (Ichthyosaura alpestris) male, Switzerland

Thomas Marent / Alpine Newt (Ichthyosaura alpestris) male, Switzerland

Thomas Marent / Alpine Newt (Ichthyosaura alpestris) male, Switzerland

Thomas Marent / Alpine Newt (Ichthyosaura alpestris) male, Switzerland

Thomas Marent / Alpine Newt (Ichthyosaura alpestris) female, Switzerland

Thomas Marent / European Tree Frog (Hyla arborea) calling, Switzerland

Pete Oxford / Chachi Tree Frog (Hypsiboas picturatus), northwest Ecuador

Pete Oxford / Northern Glassfrog (Hyalinobatrachium fleischmanni) underside showing internal organs, northwest Ecuador

Pete Oxford / Cane Toad (Bufo marinus) on riverbank, Essequibo River, Iwokrama Rainforest Reserve, Guyana

Edwin Giesbers / Common tree frog (Hyla arborea) portrait, the Netherlands

Michael Durham / Red-legged Frog (Rana aurora) near Circle Creek along coast, Oregon

Chien Lee / Shrub Frog (Philautus sp) inside Pitcher Plant (Nepenthes hurrelliana) in montane forest, Mount Murud, Sarawak, Malaysia

Michael Hutchinson / Cururu / Roccoco toad (Bufo paracnemis), largest amphibian in Argentina, Esteros del Ibera, Argentina, November

Ross Hoddinott / Front-view showing head and eyes of Common frog (Rana temporaria), Broxwater, Cornwall, UK.

James Christensen / Almirante Robber Frog (Craugastor talamancae), Colon, Panama

Martin van Lokven / Red-eyed Tree Frog (Agalychnis callidryas), Laguna del Lagarto, Boca Tapada, Costa Rica

Edwin Giesbers / Warty green burrowing frog (Scaphiophryne marmorata) portrait, Madagascar

Sebastian Kennerknecht / California Tiger Salamander (Ambystoma californiense), Monterey Bay, California

Sebastian Kennerknecht / California Tiger Salamander (Ambystoma californiense), Monterey Bay, California

Piotr Naskrecki / Pygmy Leaf-folding Frog (Afrixalus vibekensis), Atewa Range, Ghana

Thomas Marent / Tree Frog (Hyla rubracyla) at night, Colombia

Thomas Marent / Tiger's Treefrog (Hyloscirtus tigrinus) on bromeliad, new species discovered in 2007, Colombia

Thomas Marent / Tiger's Treefrog (Hyloscirtus tigrinus) on bromeliad, new species discovered in 2007, Colombia

Thomas Marent / Reticulated Poison Dart Frog (Dendrobates reticulatus), Allpahuayo Mishana National Reserve, Peru

Tim Fitzharris / Red-eyed Tree Frog (Agalychnis callidryas), Costa Rica

Ross Hoddinott / Common frog (Rana temporaria) portrait. Cornwall, UK. January

Thomas Marent / Harlequin Poison Dart Frog (Dendrobates histrionicus) on bromeliad, Cauca, Colombia

Thomas Marent / Golden Poison Dart Frog (Phyllobates terribilis) pair mating, Cauca, Colombia

Thomas Marent / Red-eyed Tree Frog (Agalychnis callidryas), Cahuita National Park, Costa Rica

ZSSD / Blue Poison Dart Frog (Dendrobates azureus) very tiny poisonous frog, Indian tribes use poison for arrows, native to South America, San Diego Zoo, California

Scott Leslie / Northern Green Frog (Rana clamitans melanota) in pond, West Stoney Lake, Nova Scotia, Canada

Scott Leslie / Northern Green Frog (Rana clamitans melanota), West Stoney Lake, Nova Scotia, Canada

Scott Leslie / Northern Green Frog (Rana clamitans melanota) floating in water, West Stoney Lake, Nova Scotia, Canada

Scott Leslie / American Toad (Bufo americanus) calling in spring pond, West Stoney Lake, Nova Scotia, Canada. Sequence 1 of 2

Scott Leslie / Frog egg mass, Nova Scotia, Canada

Tim Fitzharris / Tiger-striped Leaf Frog (Phyllomedusa tomopterna) on Heliconia, Costa Rica

Anup Shah / Secretary bird {Sagittarius serpentarius} adult brings amphibian prey to chick in nest, East Africa

Albert Lleal / Blue Poison Dart Frog (Dendrobates azureus) portrait, native to Surinam

Thomas Marent / Red-eyed Tree Frog (Agalychnis callidryas) on Heliconia (Heliconia sp) flower, Cahuita National Park, Costa Rica

Thomas Marent / Red-eyed Tree Frog (Agalychnis callidryas) on Heliconia (Heliconia sp) flower, Cahuita National Park, Costa Rica

Thomas Marent / Edible Frog (Rana esculenta) group on log in pond, Switzerland

Ross Hoddinott / Common frog {Rana temporaria} amongst moss, Cornwall. UK

Michael Durham / A three year old boy with a Pacific Tree Frog (Pseudacris regilla)

Tim Fitzharris / Red-eyed Tree Frog (Agalychnis callidryas) three sitting on Heliconia (Heliconia sp), Costa Rica, Digital composite

Tim Fitzharris / Red-eyed Tree Frog (Agalychnis callidryas) climbing on flower, Costa Rica

Ingo Arndt / Edible Frog (Rana esculenta) with reflection, Germany

Christian Ziegler / Red-eyed Tree Frog (Agalychnis callidryas) three males sitting on a stem, Soberania National Park, Panama

Christian Ziegler / Plantation Glass Frog (Hyalinobatrachiumácolymbiphyllum) is nearly transparent including the bones, only digestive tract is visible, Barro Colorado Island, Panama

Michael Durham / Pacific Chorus Frog (Pseudacris regilla) jumping into pond, Oregon

Michael & Patricia Fogden / Costa Rica Brook Frog (Duellmanohyla uranochroa) population numbers have been affected by climate change, Costa Rica

Michael & Patricia Fogden / Harlequin Frog (Atelopus varius) displaying warning coloration, Monteverde, Costa Rica

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

Piotr Naskrecki / Malagasy Web-footed Frog (Boophis luteus) clinging to limb, Madagascar

ZSSD / Panamanian Golden Frog (Atelopus zeteki) pair in amplexus, native to Panama

Ross Hoddinott / Common frog portrait {Rana temporaria} Cornwall, UK.

Phil Savoie / Red eyed tree frog legs - leaping from Heliconia - Sequence 2 (Agalychnis callidryas)

Michael Durham / Red-eyed Tree Frog (Agalychnis callidryas) portrait, native to Central and South America

Michael Durham / Red-eyed Tree Frog (Agalychnis callidryas), native to Central and South America

Michael Durham / Red-eyed Tree Frog (Agalychnis callidryas) in rain, native to Central and South America

Michael Durham / Red-eyed Tree Frog (Agalychnis callidryas) in rain, native to Central and South America

Michael Durham / Red-eyed Tree Frog (Agalychnis callidryas) in rain, native to Central and South America

Michael Durham / Red-eyed Tree Frog (Agalychnis callidryas) on flower petal, native to Central and South America

Mark Moffett / Granular Poison Dart Frog (Dendrobates granuliferus) portrait on bird's nest fungus, Corcovado National Park, Costa Rica

Mark Moffett / Golden Poison Dart Frog (Phyllobates terribilis) the most poisonous of the dart frogs, male carrying tadpoles on his back, Colombia

Mark Moffett / Golden Poison Dart Frog (Phyllobates terribilis) the most poisonous of the dart frogs, western Colombia

Mark Moffett / Golden Poison Dart Frog (Phyllobates terribilis) the most poisonous of the dart frogs, western Colombia

Pete Oxford / Marsupial Frog (Gastrotheca orophylax) in cloud the forest, Ecuador

Michael & Patricia Fogden / Blue Poison Dart Frog (Dendrobates azureus) very tiny frog used by Indian tribes to poison tips of arrows, native to South America

Gerry Ellis / Blue Poison Dart Frog (Dendrobates azureus) secretes a fluid from its skin which is used by indigenous Indians to poison the tips of arrows, native to South America

Michael & Patricia Fogden / Harlequin Frog (Atelopus varius) displaying colorful warning colors, cloud forest, Costa Rica

Phil Savoie / Red eyed tree frog on heliconia C (Agalychnis callidryas) 1 of 2 Sequence 1 - about to jump

Phil Savoie / Red eyed tree frog on heliconia (Agalychnis callidryas)