sentences:  The burrowing owl, lesser rhea, guanaco, tuco-tuco, mara, pygmy armadillo, Patagonian weasel, puma, Patagonian gray fox, desert iguana, western ribbon snake, and various species of eagle and hawk are a few of the variety of animals living in the region.The flora of the region is quite common for its climate and includes several species of desert shrubs like "Acantholippia" and "Benthamiella" and tuft grasses like "Stipa" and "Poa".Aquatic grasses and larger flora exist on the outskirts of the desert and around the ephemeral lakes that form from the Andes' runoff.