Doug Allan / Laguan Verde, Andes, Bolivia. Extinct Inca volcano behind. 4300m.

PREMAPHOTOS / Lava lizard {Liolaemus multiformis} basking on Andean altiplano at 4300m, Chile

PREMAPHOTOS / Andean foam-nest frog (Pleurodema cinerea), male and female making their foam nest during the day, Andes at 4300m, Bolivia

Pete Oxford / Quechua indian children outside home, Guadalupe commumity, altiplano at 4300m, Potosi, Bolivia

Pete Oxford / Quechua indian children at school, Relave commumity, altiplano 4300m, Potosi, Bolivia