Chien Lee / Condoto Stubfoot Toad (Atelopus spurrelli), Utria National Park, Colombia

Agustin Esmoris / Yellow Cururu Toad (Rhinella icterica), Argentina

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

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

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

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

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

Michael & Patricia Fogden / Golden Toad (Bufo periglenes) male, breeding aggregation, extinct, Monteverde Cloud Forest Reserve, Costa Rica

Piotr Naskrecki / Campbell's Forest Toad (Incilius campbelli) in rainforest, Belize

Paul Bertner / True Toad (Bufonidae), Nyungwe Forest, Rwanda

Chien Lee / Toad (Pseudobufo subasper), Nanga Pinoh, West Kalimantan, Indonesia

Chien Lee / Widow Slender Toad (Ansonia vidua) female, Pulong Tau National Park, Sarawak, Malaysia

Chien Lee / Widow Slender Toad (Ansonia vidua) female, Pulong Tau National Park, Sarawak, Malaysia

Chien Lee / Long-fingered Slender Toad (Ansonia longidigita) male fed upon by mosquitoes and biting midges, Sarawak, Malaysia

Chien Lee / Condoto Stubfoot Toad (Atelopus spurrelli) in rainforest, Utria National Park, Colombia

Agustin Esmoris / Argentine Toad (Chaunus arenarum) jumping at night, Bahia Blanca, Argentina

Agustin Esmoris / Argentine Toad (Chaunus arenarum), Bahia Blanca, Argentina

Paul Bertner / River Toad (Bufo asper), Gunung Leuser National Park, Sumatra, Indonesia

Paul Bertner / Kinabalu Slender Toad (Ansonia hanitschi), Mount Kinabalu National Park, Sabah, Borneo, Malaysia

Paul Bertner / Kinabalu Slender Toad (Ansonia hanitschi), Mount Kinabalu National Park, Sabah, Borneo, Malaysia

Jaymi Heimbuch / Cane Toad (Bufo marinus) near waterfall, Osa Peninsula, Costa Rica

Ralf Kistowski/ BIA / European Toad (Bufo bufo) in pond, North Rhine-Westphalia, Germany

Chien Lee / Bornean Rainbow Toad (Ansonia latidisca), unseen since 1924 it was rediscovered in 2011, Gunung Penrissen, Sarawak, Borneo, Malaysia

Chien Lee / Toad (Rentapia sp), Sarawak, Borneo, Malaysia

Konrad Wothe / European Toad (Bufo bufo) crossing road, Bavaria, Germany

Konrad Wothe / European Toad (Bufo bufo) crossing road, Bavaria, Germany

Pete Oxford / Rio Pescado Stubfoot Toad (Atelopus balios), rediscovered in 2015, native to South America

Pete Oxford / Rio Pescado Stubfoot Toad (Atelopus balios), rediscovered in 2015, native to South America

Pete Oxford / Andean Plump Toad (Osornophryne occidentalis), new species, native to Ecuador

Pete Oxford / Andean Plump Toad (Osornophryne occidentalis), new species, native to Ecuador

Pete Oxford / Toad (Atelopus sp), new undescribed species, native to Ecuador

Pete Oxford / Toad (Atelopus sp) pair in amplexus, new undescribed species, native to Ecuador

Pete Oxford / Toad (Atelopus sp) pair in amplexus, new undescribed species, native to Ecuador

Pete Oxford / South American Common Toad (Rhinella margaritifera), native to South America

Pete Oxford / Pebas Stubfoot Toad (Atelopus spumarius), native to South America

Pete Oxford / Pebas Stubfoot Toad (Atelopus spumarius), native to South America

Pete Oxford / Pebas Stubfoot Toad (Atelopus spumarius), native to South America

Pete Oxford / Rio Pescado Stubfoot Toad (Atelopus balios), native to South America

Pete Oxford / Rio Pescado Stubfoot Toad (Atelopus balios) climbing fern, native to South America

Pete Oxford / Valle Santiago Beaked Toad (Rhinella festae), native to South America

Pete Oxford / Elegant Stubfoot Toad (Atelopus elegans), native to South America

Pete Oxford / Elegant Stubfoot Toad (Atelopus elegans), native to South America

Pete Oxford / Pebas Stubfoot Toad (Atelopus spumarius), native to South America

Pete Oxford / Elegant Stubfoot Toad (Atelopus elegans), native to South America

Pete Oxford / Elegant Stubfoot Toad (Atelopus elegans), native to South America

Pete Oxford / Elegant Stubfoot Toad (Atelopus elegans), native to South America

Pete Oxford / Elegant Stubfoot Toad (Atelopus elegans), native to South America

Pete Oxford / Elegant Stubfoot Toad (Atelopus elegans), native to South America

Pete Oxford / Elegant Stubfoot Toad (Atelopus elegans), native to South America

Pete Oxford / Elegant Stubfoot Toad (Atelopus elegans), native to South America

Pete Oxford / Elegant Stubfoot Toad (Atelopus elegans), native to South America

Pete Oxford / Rio Pescado Stubfoot Toad (Atelopus balios), native to South America

Pete Oxford / Rio Pescado Stubfoot Toad (Atelopus balios), native to South America

Pete Oxford / Pebas Stubfoot Toad (Atelopus spumarius), native to South America

Pete Oxford / Pebas Stubfoot Toad (Atelopus spumarius), native to South America

Pete Oxford / Pebas Stubfoot Toad (Atelopus spumarius), native to South America

Konrad Wothe / South American Common Toad (Rhinella margaritifera) camouflaged on rainforest leaf litter, Panguana Nature Reserve, Peru

Konrad Wothe / South American Common Toad (Rhinella margaritifera) camouflaged in rainforest, Panguana Nature Reserve, Peru

Agustin Esmoris / Argentine Toad (Chaunus arenarum) jumping at night, Buenos Aires, Argentina

Chien Lee / Kinabalu Slender Toad (Ansonia hanitschi), Malaysia

Chien Lee / Sulawesian Toad (Ingerophrynus celebensis), Batutumonga, Rantepao, Sulawesi, Indonesia

Chien Lee / River Toad (Bufo asper), Nanga Sumpa, Batang Ai National Park, Malaysia

Chien Lee / Giant River Toad (Bufo juxtasper), Lubang Buaya, Batang Ai National Park, Malaysia

Chien Lee / Common Tree Toad (Pedostibes hosii) rarely descends to ground to breed, Lubang Buaya, Batang Ai National Park, Malaysia

Steve Gettle / American Toad (Bufo americanus) pair in amplexus, Huron Meadows Metropark, Michigan

Steve Gettle / American Toad (Bufo americanus) pair in amplexus, Huron Meadows Metropark, Michigan

Steve Gettle / American Toad (Bufo americanus) calling, Huron Meadows Metropark, Michigan

Steve Gettle / American Toad (Bufo americanus) males calling to defend territory, Huron Meadows Metropark, Michigan

Steve Gettle / American Toad (Bufo americanus) calling, Huron Meadows Metropark, Michigan

Steve Gettle / American Toad (Bufo americanus) calling, Huron Meadows Metropark, Michigan

Chien Lee / Sulawesian Toad (Ingerophrynus celebensis), Tangkoko Nature Reserve, Indonesia

Chien Lee / Mueller's Stream Toad (Ansonia muelleri), Mount Kiamo, Mindanao Island, Philippines

Cyril Ruoso / Stub-foot Toad (Atelopus laetissimus) near waterfall, Sierra Nevada de Santa Marta, Colombia

Cyril Ruoso / Cane Toad (Bufo marinus), Sierra Nevada de Santa Marta, Colombia

Cyril Ruoso / Stub-foot Toad (Atelopus laetissimus) pair near waterfall, Sierra Nevada de Santa Marta, Colombia

Cyril Ruoso / Stub-foot Toad (Atelopus laetissimus), Sierra Nevada de Santa Marta, Colombia

Cyril Ruoso / Stub-foot Toad (Atelopus laetissimus), Sierra Nevada de Santa Marta, Colombia

Cyril Ruoso / Stub-foot Toad (Atelopus laetissimus), Sierra Nevada de Santa Marta, Colombia

Cyril Ruoso / European Toad (Bufo bufo) pair in amplexus in icy water at around 2000 meters, Alps, France

Cyril Ruoso / Texas Toad (Bufo speciosus), southern Texas

Cyril Ruoso / Texas Toad (Bufo speciosus), southern Texas

Cyril Ruoso / Natterjack Toad (Epidalea calamita) male refelcted in shallow pool, Alsace, France

Cyril Ruoso / European Green Toad (Bufo viridis) male, Alsace, France

Cyril Ruoso / European Green Toad (Bufo viridis) male calling, Alsace, France

Cyril Ruoso / European Toad (Bufo bufo) pairs in amplexus in breeding pond in February, Alsace, France

Cyril Ruoso / European Toad (Bufo bufo) pairs in amplexus in breeding pond in February, Alsace, France

Cyril Ruoso / European Toad (Bufo bufo) pairs in amplexus in breeding pond in February, Alsace, France

Cyril Ruoso / European Toad (Bufo bufo) group in breeding pond, Alsace, France

Cyril Ruoso / European Toad (Bufo bufo)male and female in amplexus, Alsace, France

Cyril Ruoso / European Toad (Bufo bufo) group in underground tunnel which acts as a wildlife corridor used by thousands of toads for migration to breeding pond, France

Cyril Ruoso / European Toad (Bufo bufo) underground tunnel which acts as a wildlife corridor used by thousands of toads for migration to breeding pond, France

Cyril Ruoso / European Toad (Bufo bufo) pair in amplexus in breeding pool eighteen hundred meters high in the Alps, France

Cyril Ruoso / European Toad (Bufo bufo) pair in amplexus in breeding pool eighteen hundred meters high in the Alps, France

Cyril Ruoso / European Toad (Bufo bufo) pair in breeding pool eighteen hundred meters high in the Alps, France

Cyril Ruoso / European Toad (Bufo bufo) pair in amplexus in breeding pool eighteen hundred meters high in the Alps, France

Cyril Ruoso / European Toad (Bufo bufo) pair in amplexus in breeding pool eighteen hundred meters high in the Alps, France