After humans came into the Americas after crossing the land bridge from Asia to America how long would it have taken for humans to spread down to the tip of South America?

by PlugOnePointOne

Then for discussion: How long would a group tend to linger before traveling again? They were nomadic so didn't have permanent dwellings. Did that mean they carried tents with them? Their supplies. Did they have wheels back then?

How easy was the prey to catch back then since they didn't evolve with humans?

Was there a population explosion because of the relative ease of killing prey?

Was there a die-out once the prey became scarce(extinct?)?

Mictlantecuhtli

These questions might be better suited to /r/AskAnthropology.