There are some really great video clips of wildlife and the natural environment on the BBC site below:
Science & Nature's Planet Earth Explorer allows you to witness superb natural events and enjoy incredible locations, including the Danakil Depression.
If you're in the UK with a broadband Internet connection and have Flash installed, this link will launch the Planet Earth Explorer and play video showing you the Danakil landscape:
If you'd rather navigate the globe yourself, or don't know if you have Flash, start at the Explorer's front page.
My favourites, so far, are the swimming elephants, the wild dog chase and the termite eating chimps!