Most scientists believe in the theory of the Bering Land Bridge, also known as the Beringia theory. According to this theory, the first inhabitants of North America migrated from Asia to North America via a land bridge that connected modern-day Siberia and Alaska during the last Ice Age. This land bridge emerged as sea levels dropped due to the accumulation of water in the form of glaciers, providing a path for early humans to cross into North America. This theory is supported by archaeological evidence, such as ancient tools and artifacts, as well as genetic studies that have identified similarities between Native American populations and indigenous peoples of Siberia and East Asia.
