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:
“Without looking, then, to those extraordinary social influences which are now acting in precisely this direction, but only at what is inevitably doing around us, I think we must regard the land as a commanding and increasing power on the citizen, the sanative and Americanizing influence, which promises to disclose new virtues for ages to come.”
—Ralph Waldo Emerson (1803–1882)
“In bridge clubs and in councils of state, the passions are the same.”
—Mason Cooley (b. 1927)