 Complete the following phrase:  Most of the Rocks upper area is covered by a nature reserve which is home to around 230 Barbary macaques, the famous apes of Gibraltar, which are actually monkeys. These are the only wild apes or monkeys found in Europe. This species, known scientifically as Macaca sylvanus, is listed as endangered by the IUCN Red List and is declining. Three-quarters of the world population live in the Middle Atlas mountains of Morocco. Recent genetic studies and historical documents point to their presence on the Rock before its 