Discover the intriguing world of Antionio Brack's Oldfield Mouse, an endangered rodent native to the arid regions of northeastern Mexico. This small, nocturnal creature thrives in grasslands and shrublands, showcasing remarkable adaptations like extensive burrowing systems and a diverse omnivorous diet. Learn about its crucial role in the ecosystem, from seed dispersal to serving as vital prey for various predators, and why conservation efforts are essential for its survival.