This list is based on my global mammalwatching checklist, available here. At December 29 2025 OPOSSUMS (DIDELPHIDAE) (20/123)Derby’s Woolly Opossum (Caluromys derbianus)Brown-eared Woolly Opossum (C.lanatus) – endemicBare-tailed Woolly Opossum (C.philander) – endemicWater Opossum (Chironectes minimus)Brazilian White-eared Opossum (Didelphis albiventris) – endemicSouthern Black-eared Opossum (D.aurita) – endemicNorthern Black-eared Opossum (D.marsupialis)Andean White-eared Opossum (D.pernigra) – endemicSouthern White-eared … Continue reading Jon’s South American life list