The Iban people traditionally live in longhouses along river banks in Sarawak. They practice shifting cultivation and will move their longhouse every 15-20 years as the land is exhausted. Reasons for moving also include enemy attacks, epidemics, or bad luck. The Iban have strong cultural traditions including rituals involving clay crocodile figures. They are skilled boat builders and value decorated jars. Women weave patterned cloth using natural dyes. The culture emphasizes maintaining traditions passed down from ancestors.