Lopburi (Thai: ลพบุรี, RTGS: Lop Buri, pronounced [lóp bū.rīː]) is the capital city of Lopburi Province in Thailand. It is best known for the thousands of crab-eating macaques (Macaca fascicularis) that live in the middle of the city. It is suspected that urban expansion caused the monkeys to adapt to city life. They are fed by the local people. The monkeys can be aggressive, are not afraid of humans, and often steal whatever items or food they can find from unwary visitors. Most of the hotels and guesthouses in Lopburi are "monkey-proofed", using screen wire, or screwing the windows shut.