Pos Malaysia released a set of four stamps and a miniature sheet on the topic of nocturnal animals on 13 March 2008. The four stamps are 30sen Malay badger (Mydaus javanensis), 30sen moonrat (Echinosorex gymnurus), 50sen golden cat (Catopuma temminckii) and RM1 flying fox (Pteropus vampyrus). The miniature sheet contains two stamps - RM3 slow loris (Nycticebus coucang) and RM2 tarsier (Tarsius bancanus). The uniqueness of the miniature sheet is that the eyes of slow loris and tarsier glow (yellow colour) under ultraviolet light due to phosphor tagging. This is the first time phosphor tagging used on Malaysian stamps.
Four stamp set. From top to bottom: 30sen Malay badger, 30sen moonrat, 50sen golden cat and RM1 flying fox.
Miniature sheet containing two stamps: RM3 slow loris and RM2 tarsier. Phosphor tagging was applied on the eyes of the animals (in stamps and also at the border of stamps).