Short-tailed Chinchilla

These small rodents are native to the high Andes of South America, where they inhabit arid mountainous grasslands at elevations reaching 16,000 feet. While they once lived across Peru, Argentina, Bolivia, and Chile, they are now found primarily in northern Chile, with only small groups recently rediscovered in Bolivia. They live in rocky crevices or self-dug burrows, often surrounded by sparse cover like cacti and thorny shrubs. Their thick, grayish-blue fur is incredibly dense, with up to 50 hairs growing from a single follicle. This plush coat prevents water from evaporating and helps the Short-tailed Chinchilla survive freezing temperatures at high altitudes.

Living in social colonies called herds, these shy, intelligent creatures are crepuscular, waking at dawn and dusk to forage. They use their long whiskers to navigate the darkness and powerful hind legs to jump across 6-foot-wide mountain crevices. Their diet is mainly plant-based, consisting of grasses, seeds, nuts, and succulents. To maintain their soft fur, they take dust baths in volcanic ash, which clears away dirt and skin oils. Breeding pairs are monogamous, with females usually being larger than males and typically giving birth to two kits per litter.

Human activity poses the greatest risk to their survival. Commercial hunting for their valuable pelts led to a 90% population decrease and regional extinction in most of their former range. Although hunting is now illegal, the species still faces threats from habitat loss caused by mining operations and firewood harvesting. Additionally, because the remaining wild populations are small and isolated, they suffer from low genetic diversity. In their natural environment, they must also evade predators such as owls, hawks, snakes, and the Andean fox.