A land bridge, in biogeography, is an isthmus or wider land connection between otherwise separate areas, over which animals and plants are able to cross and colonise new lands. Land bridges can be created by marine regression, in which sea levels fall, exposing shallow, previously submerged sections of continental shelf; or when new land is created by plate tectonics; or occasionally when the sea floor rises due to post-glacial rebound after an ice age.
Read more about Land Bridge: Prominent Examples, Land Bridge Theory
Famous quotes containing the words land and/or bridge:
“The land is numb.
It stands beneath the feet, and one may come
Walking securely, till the sea extends
Its limber margin, and precision ends.”
—Yvor Winters (1900–1968)
“I see four nuns
who sit like a bridge club,
their faces poked out
from under their habits,”
—Anne Sexton (1928–1974)