Ingrid Visser / Southern Viscacha (Lagidium viscacia) on rocks, Chile

Theo Allofs / Plains Viscacha (Lagostomus maximus) resting on rock, Salar de Surire National Monument, northern Chile

Luciano Candisani / Chinchilla (Chinchilla lanigera) portrait, Sao Paulo, Brazil

Pete Oxford / Southern Viscacha (Lagidium viscacia) sitting on rock, altiplano, Bolivia

Tui De Roy / Southern Viscacha (Lagidium viscacia) feeding in high elevation Andean wetland adjacent to colony in boulder field, Lauca National Park, Chile

Paul D Stewart / Illustration of Viscacha (Lagidium sp.). Plate 42 from Volume 1 Trans Zool Soc London, 1835, 'Additional remarks on the Genus Lagotis, with some account of a second species referrible to it' with cont...