A peculiarly shaped island east of Borneo. Sulawesi straddles the equator, with the Celebes Sea to the north and the Molucca Sea to the east. In the middle Miocene, about 15 million years ago, the Australian plate, bounded on the north by New Guinea, collided with the Eurasian plate. Sulawesi received land from both plates. This explains why this island has animals, some of whose ancestors came from Asia and others from Australia. See biogeographic realms, plate tectonics, Wallace line.
Subjects: Genetics and Genomics.