The museum opened on 20 December 1985, and has detailed coverage of Omans flora and fauna, with displays on indigenousmammals, insects, and birds and botanical gardens. One of the highlights of the museum is the whale room: it houses the huge skeleton of a sperm whale, which was washed up on the Omani coastline in the 1980s.The museum contains marine and animal fossils and ancient mammals such as monkeys and elephants primitive, teeth Deinotherium and Gomphotherium, and stuffed animals Arabian leopard. Caracal. Arabian Oryx. Arabian wolf. Arab Red fox. Ghazal skeleton Arabic. Ibex Arabic. Flamengo. Birds. Crow. Owl. Reptiles. Snakes lizards. Snails and shells.