Frog back from the dead helps fight plans for mine in Ecuador

Campaigners say if copper mine gets go-ahead in cloud forest, the longnose harlequin, once thought to be extinct, will be threatened again

Reports of the longnose harlequin frog's death appear to have been greatly exaggerated - or, at least, premature. The Mark Twain of the frog world is listed by the International Union for Conservation of Nature (IUCN) as extinct, which may come as a surprise to those alive and well in the cloud forests of Ecuador's tropical Andes.

Known for its pointed snout, the longnose harlequin frog (Atelopus longirostris) is about to play a central role in a legal battle to stop a mining project in the Intag valley in Imbabura province, which campaigners say would be a disaster for the highly biodiverse cloud forests.