Rock of Gibraltar to describe an entity that is very safe or firm. The motto of the Royal Gibraltar Regiment and Gibraltar itself is "Nulli Expugnabilis Hosti" (Latin for "No Enemy Shall Expel Us"). Approximately 40% of Gibraltar's land area was declared a nature reserve in 1993. The flora and fauna of the Gibraltar Nature Reserve are of conservation interest and are protected by law. Within it is a range of animals and plants, but the highlights are the Barbary macaques (the famous "Rock apes"), the Barbary partridges, and flowers such as Gibraltar's own Chickweed, Thyme and the Gibraltar Candytuft. The Barbary macaques
Gibraltar the overnight low is and the average sea temperature is . In the warmest month, August, the daily high temperature is , the overnight low is , and the average sea temperature is . Over 500 different species of flowering plants grow on the Rock. Gibraltar is the only place in Europe where the "Gibraltar candytuft" ("Iberis gibraltarica") is found growing in the wild; the plant is otherwise native to North Africa. It is the symbol of the Upper Rock nature reserve. Olive and pine trees are among the most common of those growing around the Rock. Most of the