Did America’s First Immigrants Travel By Land Or Sea? Scientists Weigh In
The first humans to settle the Americas might have been sailors, and Earth’s prehistoric environment would have kept them alive as they floated along the coasts and looked for new places to make their homes.
Some researchers are arguing that dense growths of kelp in shallow waters that attract other marine creatures would have provided the travelers with plenty of food during their migrations. Those “kelp forests” are found in many Pacific coastal areas — including places that contain some of the earliest evidence of human settlement in North and South America.