Best answer: What is the coastal migration hypothesis?

The coastal route hypothesis is based on the idea that the First People to inhabit North America traveled by boat down the Pacific coast, living in areas of ice-free land, called refugia, along the way. … evidence that early people had the tools and skills to make boats, and to catch fish and sea mammals.

Where did the coastal migration hypothesis start?

Between ∼22–16 ka these ANA people began migrating by foot and boat along the southern Beringian coast and down the Alaskan and Canadian coastline into the Americas south of the continental ice sheets before eventually expanding inland. We develop a series of testable hypotheses through which the CMT can be examined.

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What is the coastal route theory and what evidence supports it?

The evidence presented clearly supports the idea of human migration along the northwest coastline instead of an interior route. Fossilized biological data consistently shows that the interior route of an ice free corridor would not have been ecologically sustainable until after the first humans entered the Americas.

What is the kelp highway hypothesis?

Jon Erlandson, and his colleagues at the University of Oregon’s Department of Anthropology, suspect that kelp sustained the first American people after they arrived on a long ocean journey from Asia — a theory known as the “Kelp Highway Hypothesis.” These early humans may have fished among the sea forests, relying on …

What are two theories about migration to the Americas?

Two theories currently explain the arrival of humans in the Americas: the Bering Strait land bridge theory and the coastal migration theory.

What does the Solutrean hypothesis suggest?

The Solutrean hypothesis posits that a population derived from the Solutrean culture of Western Europe may have crossed the North Atlantic Ocean along the edge of pack ice that extended from the Atlantic coast of France to North America during the Last Glacial Maximum, before 17 kya.

What is the Oceania theory?

The Oceania theory says that humanity came to the Americas first by crossing the Pacific Ocean from Australia and the South Pacific islands. Learn why some archaeologists believe this theory shows us how humans discovered the New World.

Why is the coastal crossing theory of migration hard to prove or disprove?

Why is the coastal crossing theory of migration hard to prove or disprove? … The coastlines that migrants would have sailed along are underwater. Sea levels have lowered since the Ice Age. The climate has remained the same since the Ice Age.

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When did the coastal migration arrive?

Prehistoric sites in Channel Islands National Park suggest that people arrived on the California coast as early as 13,000 years ago.

What evidence supports the land bridge theory?

Fossils of large mammals dating to the time of the ice age have also been found on the Aleutian Islands in the middle of the modern-day Bering Sea. All this evidence indicates that, even though it was cold, conditions were good enough for people to have lived on the land bridge itself during the ice age.

What is the kelp highway and how does it differ from the land migration theory?

The kelp highway theory suggests that the first Americans arrived not by land, but by sea, following the coastline of the Pacific Rim of northeastern Asia and Beringia to as far south as South America.

Did the first Americans take a ride on the kelp highway?

The First Americans may have followed a “kelp highway” of marine resources via a coastal route from Siberia to the New World. Nutrient-rich kelp beds such as these, near Crook Point on the Oregon coast, attract salmon and other sea life that would have sustained the early explorers.

What does the coastal migration theory hypothesize about the origins of indigenous peoples in the Americas?

The coastal route hypothesis is based on the idea that the First People to inhabit North America traveled by boat down the Pacific coast, living in areas of ice-free land, called refugia, along the way. They may have hunted some land animals, but they also would have fished and hunted sea mammals.

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What is the most widely accepted theory about human migration to the Americas?

Summary: The most widely accepted theory of the inhabitation of North America is that humans migrated from Siberia to Alaska by means of a ‘land bridge’ that spanned the Bering Strait.

Why did humans migrate to the Americas?

Drought, flood, and temperature changes could certainly push people to move on. Climate change also affects the food supply, and anthropologists have assumed that people came to the Americas because they were following food on the hoof.

What are two theories about migration to the Americas quizlet?

The first humans came to North America thousands of years ago, but no one is really sure how, when, or from where. The two main theories are the Bering Land Bridge theory and Coastal Crossing Theory.