The Namibia Department of Agriculture and Rural Development, founded in 1979 at Windhoek, supports extensive research on natural resources and ecology. The Desert Ecological Research Unit of Namibia, founded in 1963 at Swakopmund, carries out exploration and research in the Namib Desert and semiarid Namibia. The University of Namibia has a faculty of science. The Namibia Scientific Society, at Windhoek, is concerned with ornithology, spelaeology, botany, archaeology, herpetology, astronomy, and ethnology. Natural science exhibits are displayed at the Lüderitz Museum, the Museum Swakopmund, and the National Museum at Windhoek. In 1987–97, science and engineering students accounted for 4% of college and university enrollments.