Lucas Bustamante / Rio pescado harlequin toad (Atelopus balios) pair on branch, female on the left, Azuay, Ecuador, Critically endangered species, possibly extinct.
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...
Stephen Dalton / Green mosaic / Rancho grande harlequin frog (Atelopus cruciger) walking along tree trunk, Henri Pittier NP, Venezuela, South America, Critically endangered, thought extinct until a gravid female was f...