What does the Land Bridge Theory explain?

The Land Bridge Theory explains how early humans migrated from Asia to North America via the Bering Land Bridge, which existed during the last Ice Age when sea levels were lower. This natural land formation allowed people to cross over from Siberia to Alaska, facilitating the movement of nomadic groups in search of food and resources. This migration is significant in understanding the spread of humans across the continents and the subsequent development of various cultures in North America. This theory is crucial for anthropologists and historians, as it provides insight into early human behavior and the patterns of settlement that arose in the Americas as a result of this migration.