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What was once home to mastodons, mammoths, steppe bison, and other ice-age mammals is now the breeding ground for smaller animals like reindeer, muskox, caribou, and moose. Though the animals have changed, the subsistence way of life for Alaskan natives have not. Whether for carving ivory and bone, hunting seals and fishing for food, or picking berries in the spring for Eskimo ice cream, the lives of those living on the Seward Peninsula are interminably intertwined with the environment.

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What was once home to mastodons, mammoths, steppe bison, and other ice-age mammals is now the breeding ground for smaller animals like reindeer, muskox, caribou, and moose. Though the animals have changed, the subsistence way of life for Alaskan natives have not. Whether for carving ivory and bone, hunting seals and fishing for food, or picking berries in the spring for Eskimo ice cream, the lives of those living on the Seward Peninsula are interminably intertwined with the environment.

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abbey

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This kind of vegetation would not have supported the large, grazing animals – woolly mammoth, woolly rhino, Pleistocene horses, camels, and bison. These animals lived on the vegetation of the steppe-tundra which dominated the interior of Alaska and the Yukon, as well

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this  makes the level of the oceans lower, like the water in your bath is lower if you let some out. Because the ocean level is lower, more of the land sticks out, like your knees in the bath.

CENTRAL ASIA

NORTH AMERICA

LAND BRIDGE

PALEO-INDIANS

INUIT

DOGS

CAMELS

HORSES

ENVIRONMENT

The Bering Strait today, with the land bridge underwater

In some places, this makes islands where before the land had been underwater. In other places, this makes a long bridge of land that connects two different continents. During the last Ice Age, about 12000 BC, there was a land bridge between East Asia and North America, leading from Siberia toAlaska, and most archaeologists think that some people and dogscrossed over this land bridge and began to live in North America at that time. These probably weren't the first people to come from Central Asia to North and South America - the first people may have come in an earlier Ice Age, or they may have come by boat.

Learn by doing: On a globe, trace the path people followed from Africa to South America
More about the Paleo-Indians

Bibliography and further reading about ice ages and land bridges:

Archaeology : Uncovering the Mysteries of Our Past, by Richard Panchyk (2001). With twenty-five projects, like counting tree rings, and serializing cars from photographs. Includes a project on soil types.

More about the Paleo-Indians
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Professor Carr

Karen Eva Carr, PhD.
Assoc. Professor Emerita, History
Portland State University

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But we've long known that a land bridge joined present-day Alaska and Russia in a kind of pre-cold war geologic detente. The bridge "rose" from the ocean as vast amounts of ocean water became tied up in the enormous glaciers of the last ice age. That exposed the broad continental shelves now covered by the Bering Strait and created the land bridge.

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But we've long known that a land bridge joined present-day Alaska and Russia in a kind of pre-cold war geologic detente. The bridge "rose" from the ocean as vast amounts of ocean water became tied up in the enormous glaciers of the last ice age. That exposed the broad continental shelves now covered by the Bering Strait and created the land bridge.

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land  Bridge theory land

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from 1932 to

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The most widely accepted theory is that sometime before 14,000 years ago, humans migrated from Siberia to Alaska by means of a "land bridge" that spanned the Bering Strait. However, in the 1990s, some researchers proposed that North America was first settled by Upper Paleolithic people from Europe, who moved from east to west through Greenland via a glacial "ice bridge." Now, researchers at the University of Missouri and their colleagues have proven that the latter theory is simply not true.

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The Land Bridge Theory proposes that people migrated from Siberia to Alaska across a land bridgethat spanned the current day Bering Strait. The first people to populate the Americas were believed to have migrated across the Bering Land Bridge while tracking large game animal herds.

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So less water is in the oceans than before.

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Madison                        The Land Bridge Theory proposes that people migrated from Siberia to Alaska across a land bridge that spanned the current day Bering Strait. 

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Madison                        The Land Bridge Theory proposes that people migrated from Siberia to Alaska across a land bridge that spanned the current day Bering Strait. 

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The Land Bridge Theory proposes that people migrated from Siberia to Alaska across a land bridgethat spanned the current day Bering Strait. The first people to populate the Americas were believed to have migrated across the Bering Land Bridge while tracking large game animal herds.

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Elijah                                 corborn dating has now placed these spear points are more thean 13,500 years  old.

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Elijah                                 corborn dating has now placed these spear points are more thean 13,500 years  old.

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During an Ice Age, when the world is colder, more of the world's water freezes into ice.Bryan

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During an Ice Age, when the world is colder, more of the world's water freezes into ice.Bryan

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people traveled of the land bridge from siberia.

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This theroy was proposed in 1590

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The "Land Bridge" between today's Alaska and China.  According to the theory, the small group was isolated from its ancestor populations in Asia as the glaciers melted for at least 5,000 years, before expanding to populate the North American continent sometime after 16,500 years ago.

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the first americans walked to new world across a land bridge that joined asia and north america between 70,000 and 11,000

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land Bridge theory  land bridge theory

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more than 10,000 years ago , people crossed from east Asia through Bering
the land bridge.

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Some people think the first Americans went over the Bering sea land bridge. made by William Meredith

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The first people in America

migrated over the land bridge from Siberia and Asia

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this theory was first purposed in 1590.