Hunter gathers were people who hunted fir nuts deers and ect
They followed the movements of animals.
The temporary land mass that linked Siberia and Alaska is known as Beringia, or the Bering Land Bridge. During the last Ice Age, lower sea levels exposed this land bridge, allowing hunter-gatherers to migrate from Asia to North America. This migration is believed to have occurred around 20,000 to 15,000 years ago, facilitating the movement of people and animals across the Bering Strait.