Water Opossum

The water opossum (Chironectes minimus), also locally known as the yapok (), is a marsupial of the family Didelphidae. It is the only monotypic species of its genus, Chironectes. This semiaquatic creature is found in and near freshwater streams and lakes from Mexico through Central and South America to Argentina and is the most aquatic living marsupial (the lutrine opossum also has semiaquatic habits). It is also the only extant marsupial species in which both sexes have a pouch. The now extinct thylacine, commonly referred to as the Tasmanian tiger, also exhibited this trait. The local name for the water opossum, "yapok", may come from the name of the Oyapock River in French Guiana. == Physical appearance == The water opossum is small, measuring 27–32.5 cm (10.6–12.8 in) long, with a 36–40 cm (14–16 in) long tail. The fur is in a marbled grey and black pattern, while the muzzle, eyestripe, and crown are all black. A light band runs across the forehead anterior to the ears, which are rounded and hairless. There are sensory facial bristles in tufts above each eye, as well as whiskers. The water opossum's tail, furred and black at the base, is yellow or white…