Discover the Jansa's Woolly Mouse Opossum (Marmosa jansae), a small, elusive marsupial native to South America's rainforests, recognized for its woolly coat and remarkable arboreal adaptations. This nocturnal creature plays a vital role in its ecosystem through seed dispersal and pest control, all while navigating the dense canopy with its prehensile tail. Learn about its fascinating behaviors, habitat preferences, and the conservation challenges it faces in a rapidly changing world.