Discover the fascinating Guaiba Mouse Opossum (Thylamys guaiba), a small, nocturnal marsupial native to the subtropical forests of Brazil. With its unique mouse-like appearance, prehensile tail, and vital role in ecosystems through pest control and seed dispersal, this elusive creature is a remarkable example of nature’s ingenuity. Learn more about its behaviors, adaptations, and the conservation efforts aimed at preserving its habitat.