Benjamin Barthelemy / Pair of Common european toads (Bufo bufo) pair in amplexus in the Lac des Corbeaux, with frogspawn, Ballons des Vosges Regional Natural Park, Vosges, Lorraine, France, April

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

Daniel Heuclin / Portrait of a Crested Forest Toad (Rhinella margaritifer). Controlled conditions. French Guyana, August.

Miles Barton / Panamanian Golden Frog (Atelopus ziteki) Panama, Featured in BBC NHU series 'Life in Cold Blood'. Species now extinct in the wild

Miles Barton / Panamanian golden frog (Atelopus ziteki) reacting to the image of a frog on a video monitor. Experiment carried out to reveal the purpose of the frog's waving behaviour - to attract mates and deter ri...

Tim Laman / Frog {Rana similis} Sierra Madre National Park, Luzon, Philippines

Pete Oxford / Crested toads on leaf litter {Bufo typhonius}, Amazon, Ecuador Captive

Tim MacMillan / John Downer Pr / Multiple exposure study of various frogs gliding. Those with more webbing between their toes glide further (Resolution restriction - image digitised from film, 'Weird Nature' tv series)

Tim MacMillan / John Downer Pr / Multiple exposure study of various frogs shows that those with more foot webbing glide further (Resolution restriction - image digitised from film, 'Weird Nature' tv series)

John Cancalosi / Colorado river toad (Incilius alvarius) pair mating. Sonoran desert, Arizona, USA. August.

Yashpal Rathore / Malabar torrent toad (Ghatophryne ornata) with bright yellow-orange spots more on abdomen. Coorg, Karnataka, India. Endemic to the Western Ghats. Endangered species. Endangered species

Laurent Geslin / Natterjack (Epidalea calamita) on road at night with car behind, France, September.