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
History of the Maltese in Gibraltar very cosmopolitan population. Years of coexistence and intermarriage on the Rock soon led to a coalescence of Maltese, Italian and Andalusian culture, preserving the Mediterranean and Catholic uniqueness of Gibraltar despite the centuries of British rule. Gibraltar prospered by the arrival of 19th century trade with North Africa and the presence of the Royal Navy. This prosperity attracted immigrants from neighbouring Mediterranean lands and in 1885 there were about 1,000 Maltese people living in Gibraltar. Early in the 20th century the British undertook vast naval works and improvements to the existing fortifications of Gibraltar to make the rock practically impregnable.