The existing climate differences, hydrography and vegetation between the west, Puna, and the east, Eastern mountain range and Andean mountain ranges, of the Region of the Northwest, are also pronounced in the fauna, very abundant in the east and reduced in the west. The animals that live in the region are:

Mammals: coatí, ferret, real zorrino, wild cat, puma, Andean cat, tato lynx, yaguareté, to tapir, pecarí, call, guanaco, alpaca, vicuna, huemul of the north, corzuela, guazuncho, tapetí, squirrel, pericote, hocicudo, marmota, weasel, bat, vampire, caraya, I fell, sluggish, quirquincho, mataco, mulita, red fox and of mount, farm osito, chinchilla Indiana, cuis serranos among others.

Reptiles: ampalagua, snake, false chorale, small lizard

Exotic Species: black rat, alejandrina rat, rabbit of Castile, laucha, European hare, sparrow, canary.