What is the leading theory about how early humans arrived on the American continents? :
They walked from Africa to South America one of those two continents were part of the same landmass
They walked from Asia to North America over a strip of land that has since been covered by the ocean
They sailed in large ships from Australia to North America
They canoed from Antarctica to South America when the climate became too harsh
1 answer
The leading theory about how early humans arrived on the American continents is that they walked from Asia to North America over a strip of land that has since been covered by the ocean. This is commonly known as the Bering Land Bridge theory or the Beringia theory. It suggests that during periods of glaciation, sea levels were lower, exposing a land bridge between present-day Siberia and Alaska, allowing early humans to travel across.