which theory do you believe populated America?

Question

ice free corridor theory
coastal migration theory
dna/genetics theory
or
landbridge thory

Answer 1

lot of people think the orientals came across to Alaska when it was land up there, and then moved south and east

Answer 2

I believe people followed the coasts around to America. From all directions, When our ancestors arrived there were already many diverse groups of people, we called them Native Americans but some live south, some north. I think they explored just like our ancestors did when the came over here.