3 years ago i read an article about Supervolcanoes, and i must admit that when unusual activity in Yellowstone was reported, i had a tingle run down my spine ...
This might be what the Discovery channel send, but on BBC they have a very good program about supervolcanoes.
http://www.bbc.co.uk/science/horizon...olcanoes.shtml
In it there is also presented a mindboggling theory about our common ancestry.