The theory that the Americas were populated by humans crossing from Siberia to Alaska across a land bridge was first proposed as far back as 1590, and has been generally accepted since the 1930s.

Researchers and crew members pose beside the University of Alaska Fairbanks research ship Sikuliaq in Dutch Harbor during a 2023 cruise to the Bering Sea to learn more about the Bering Land Bridge.

The Bering Land Bridge at the height of the last ice age. (Map by Nancy Bigelow) During the coldest days of the last ice age, the Bering Land Bridge was 1,000 miles wide, a belt buckle the size of ...

Ultimately, the geologists suggest that the Bering Land Bridge may have looked more like the modern-day Yukon-Kuskokwim Delta in western Alaska than its arid steppe grassland.

The land bridge, now submerged under the Bering Strait between Alaska and Russia, was above water from about 36,000 years ago to 11,000 years ago.

Genetic and environmental evidence indicates that after the ancestors of Native Americans left Asia, they spent 10,000 years on a land bridge that once linked Siberia and Alaska. Archaeological ...

The Bering Land Bridge's boggy environs were revealed by a research cruise aboard the R/V Sikuliaq, an over 260-foot oceanographic vessel operated by the University of Alaska Fairbanks.The ...

Scientists have long assumed the Bering Land Bridge was a dry, grassy tundra. ... Last year, a team of researchers led by ...