15 January 2009


Video link


David Ano said...

An internal ramp? Fascinating ... although that would make sense. Now I want to learn more about it!

awcomix said...

I came across it by accident on youtube. If you follow the link on this post to watch the national geographic short clip on it. I really want to get the book but at $50 it'll have to wait. I'm also hoping I can catch the full doco on the national geographic channel very soon.