Rock of Gibraltar may have originated from an escape of North African animals transported to Spain; it is also possible that the original Gibraltar macaques are a remnant of populations that are known to have spread throughout Southern Europe during the Pliocene, up to 5.5 million years ago. Some animals of the Rock have been reintroduced by the Alameda Wildlife Conservation Park who have three Barbary macaques. The Rock of Gibraltar, at the head of the Strait, is a prominent headland, which accumulates migrating birds during the passage periods. The vegetation on the Rock, unique in southern Iberia, provides a temporary home for
Tales of the Gold Monkey substitute brass monkey that is kept at the Monkey Bar for the rest of the series. The series was inspired by the 1939 drama film "Only Angels Have Wings". Originally, the series was to be called "Tales of the Brass Monkey", but the Heublin company had run a series of magazine ads with exactly that name about a bar in the Far East, with hints of Casablanca intrigue and references to the Kenpeitai; so, to avoid legal difficulties, the name was changed to "Gold Monkey". At the end of the pilot episode, it is revealed that the statue at the