“...evidence for a land bridge..”
example below (water levels changed globally) in response, however I reject long dates, because they don’t have to be long ago...radio-carbon dating is so full of fallacy. (contaminated sampling as with radio-isotope)
“...The sharing of animal and plant species between Australia-New Guinea and nearby Indonesian islands is another consequence of the early land bridges, which closed when sea levels rose with the end of the last glacial period. The sea level stabilized to near its present levels about 6000 years ago, flooding the land bridge between Australia and New Guinea.”
“”Archaeological evidence indicates human habitation at the upper Swan River, Western Australia by about 40,000 years ago. Tasmania, which was connected to the continent by a land bridge, was inhabited at least 30,000 years ago...”
Wade, Nicholas (8 May 2007). “From DNA Analysis, Clues to a Single Australian Migration”. The New York Times.
But evolutionist are terrible in estimating time, because of the methods use. So the land bridge would have disappeared after the last “supposed ice age”.
I’m aware of fluctuating coastlines due to changes in sea levels. What I can’t see any evidence for is a land bridge that may have existed connecting the Americas to Europe.