Discover the elusive Río Magdalena Slender Opossum (Marmosops magdalenae), a small marsupial native to Colombia's Magdalena River basin. With its agile movements, nocturnal lifestyle, and role in seed dispersal, this remarkable creature exemplifies the rich biodiversity of South America's tropical forests, while facing threats from habitat destruction. Learn about its unique adaptations, behaviors, and the conservation efforts needed to protect this fascinating species.