A connection between large landmasses or continents that is exposed during lowered sea level
s usually due to glaciation
During the last glacial
maximum, which was about 12,000 years ago, a landbridge linked Siberia
in North America
. It is theorized that human
s and large mammals such as the mastadon
and the mammoth
migrated into North America across this landbridge and other animals, such as the horse
, migrated from North America into Asia.
Today, the waters of the Bering Strait
cover this landbridge.