Marsupials are an infraclass of mammals living primarily in the Southern Hemisphere; a distinctive characteristic, common to most species, is that the young are carried in a pouch. Like other mammals in the Metatheria, they are characterized by giving birth to relatively undeveloped young, often residing in a pouch with the parent for a certain time after birth. At the Zoo we have just 2 species of marsupial the Wallaby and the Red Kangaroo. Although we now have a colony of Normal Silver Wallabies and a colony of Albino Wallabies after 2 normal coloured wallabies gave birth to an albino.