Discover the Northeastern Woolly Mouse Opossum (Marmosa demerarae), a fascinating nocturnal marsupial native to the lush forests of northeastern South America. With its distinctive woolly fur, prehensile tail, and vital role in seed dispersal and pollination, this small but resilient creature exemplifies the rich biodiversity of its ecosystem. Learn more about its intriguing behaviors, adaptations, and the conservation challenges it faces.