Answer:
Step-by-step explanation:
Before the 1830s, there were no dams on Maine’s Penobscot River. Atlantic salmon ran upstream in schools numbering 50,000 or more. Shad and alewives migrated 100 miles upriver. Twenty pound striped bass and Atlantic sturgeon ranged far from the ocean into New England’s second largest river. People who were already living in North America traveled down and across this land bridge.
Scientists think they traveled there around 11,000 BC. They probably were following large animals
that they hunted and ate. These people would have traveled on foot, following the herds of animals.
They had no permanent houses. They would pack up their things and bring them along as they
hunted. Their homes were like tents and were very easy to take down and put up. Archaeologists can
tell these people traveled via the land bridge because they have found similar arrowheads and tools
in both the land bridge and in areas further north and south.