Later migrations took humans to Japan, on to Indonesia, and finally to Australia. They also migrated across the Bering land bridge into North America and spread quickly down to the southern tip of South America. Later movements brought people to the eastern part of the Canadian Arctic and to northern Greenland.
Human migration has not just involved taking over unused land. People have also invaded land occupied by other peoples through killing, displacing, or genetically mixing with the land’s existing inhabitants. Looking at today’s world, it is clear that we continue to do this. To sum up, migration seems to be a fundamental human instinct.