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
Monkey on My Back tours throughout the 1990s. Additionally, the band performed the song at several famous televised performances, including on "Saturday Night Live" on February 21, 1990 as well as at their "MTV Unplugged" performance on September 18, 1990. "Monkey on My Back" was also included on the band's 1998 live compilation "A Little South of Sanity". Monkey on My Back "Monkey on My Back" is a song by American hard rock band Aerosmith. Written by lead singer Steven Tyler and lead guitarist Joe Perry, the song was released on the band's 1989 album "Pump". It was released as a promotional single to