Discover the fascinating world of the Common Viscacha Rat (<i>Dolinomys didelphoides</i>), a hardy herbivore thriving in the high-altitude Andes of South America. With its distinctive tufted tail and social behaviors, this nocturnal rodent plays a vital role in its ecosystem, contributing to seed dispersal and maintaining vegetation health. Learn about its unique habitat, dietary habits, and the conservation efforts needed to protect this intriguing species.