My understanding is that the indigenous Americans migrated over the land bridge joining Asia and North America during the last glacial period. Weren't there ice sheets covering much of North America at the time? My questions are: how did they get to all the places they settled with giant glaciers in the way? Were they just hanging out in Beringia until the glaciers melted? If so, what was the timeframe for these migrations? How long did it take for paleoamericans to make it from what is now Alaska to all the places in the Americas they ended up settling? Also, weren't there later migrations occurring after sea levels had risen, such as the migration of the Inuits? How did they end up in the Americas? Did they go by boat? Thank you for any answers, this is a very interesting topic to me, and I would also appreciate any reading suggestions about the topic