Tourism in the Arab world visitors include sunning, swimming, kite-surfing, diving, snorkeling, boating, surfing, beach combing and shell collecting. The beaches are popular with families, walkers, and joggers. They are lined with restaurants, snack bars and cafes. Desert safari is becoming a very popular activity; it can be either done on camels or by four-wheel drives. Nearly every Omani city and town has its own fort. Most of them were built or had major expansions during Al-Yarubi dynasty rule of Oman in between 1624 and 1744. They represent the fine Omani architecture and prosperity at that time. In times of war and with high and
Name-bearing type In contrast, a subjective synonym is based on a different name-bearing type, but is regarded as representing the same taxon; for example, the name "Viverra touan" Shaw, 1800, is based on a different name-bearing type (a specimen in the Field Museum of Natural History), but is currently regarded as representing the same species as "Didelphis brevicaudata" and "Didelphys brachyuros". "Family-group" ranks include the superfamily and all other ranks below it and above the genus, including the family and tribe. The name of a family-group taxon is based on the stem of the type genus, its name-bearing type; for example, the