It has been a long standing tradition for immigrants to this country to work, earn money then send some of the money back home to the families they left behind when they came here. Sometimes it is to provide those left behind with the funds to come over here eventually, sometimes it is just to support the folks "back home". We also know that there are millions of immigrants, legal and illegal in this country who are doing just that today. But this can be taken a bit too far, too.
When they send the Appalachian Mountains back to Mexico, it's time to say "enough!"
A section of the Appalachian Mountains discovered in Mexico is forcing scientists to redraw their maps of ancient Earth.
The Appalachians are a series of mountain ranges in eastern North America that extend from Southern Quebec in Canada to northern Alabama. A piece of the chain was recently uncovered in a large Mexican outcropping of rock, known as the Acatlan Complex.
Analyses of the rocks revealed they were formed on the ocean floor, and dating showed they were much younger than previously thought.
"This will change the way geologists look at Mexico," said study leader Damian Nance of Ohio University.
It also challenges current theories about the creation of the Appalachians, mountain ranges that have revealed valuable clues about the planet's early geography.
Previously, scientists thought that 420 million years ago Earth contained two main land masses that were separated by a large expanse of sea, called the Rheic Ocean. In the south was Gondwana, a supercontinent consisting of South America, Africa, India, Australia and Antarctica. And to the north was Laurussia, made up of North America, Greenland, Europe and parts of Asia.
They have a fascinating animation at LiveScience that shows how the "super continents" are thought to have fit together until they broke apart.
