Morley Read / Close-up of Agua rica leaf frog (Phyllomedusa ecuatoriana) eggs after 11 days development, showing beating heart and blood flowing over gills, Ecuador. Endangered. (non-ex)

Morley Read / Rio Faisanes stubfoot toad (Atelopus coynei), Carchi Province, Ecuador, 2017. Critically endangered. (non-ex)

John Cancalosi / Sonoran desert toad (Incilius alvarius) pair mating, with trail of spawn in water. Arizona, USA.

Yashpal Rathore / Small tree frog (Rhacophorus lateralis) at night under starry sky, Western Ghats. India. Endangered and endemic to Western Ghats.

Lucas Bustamante / Labiated rainfrog (Pristimantis labiosus) feeding on spider prey, Mashpi, Pichincha, Ecuador

Lucas Bustamante / Lesser Clownfrogs (Dendropsophus parviceps) with their eggs. Sumaco National Park, Napo, Ecuador

Edwin Giesbers / Lemon-yellow tree frog (Hyla savignyi) climbing up grass stem. Cyprus. April.

Edwin Giesbers / Lemon-yellow tree frog (Hyla savignyi) Cyprus. April.

Morley Read / Leaf frog (Agalychnis hulli) blinking its eyes and turning around, Orellana Province, Ecuador. (non-ex)

Morley Read / Developing embryo of the Ecuadorian monkey frog (Phyllomedusa ecuatoriana), showing heart beating and blood flowing, Morona Santiago Province, Ecuador, (non-ex)

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

Guy Edwardes / Marsh Frog (Pelophylax ridibundus) vocalising with bokeh effect in the background, Danube Wetlands, Bulgaria