An interesting theory.
The article:
http://sciencenow.sciencemag.org/cgi/content/full/2007/801/1
The related slashdot discussion:
http://science.slashdot.org/science/07/08/02/1923251.shtml
The article:
http://sciencenow.sciencemag.org/cgi/content/full/2007/801/1
The related slashdot discussion:
http://science.slashdot.org/science/07/08/02/1923251.shtml