Cool (free) streaming nature video/documentary links

Howdy y'all. Sometimes we find ourselves too busy, too tired, or too whatever, to actually get out into the woods or to our favorite natural setting. When we do get out there, it is always an honor to witness wildlife of all kinds with our eyes, ears, and nose- and less often with our skin and tongue heh. However, it can be difficult for our senses to detect wildlife before it/they detect us. This is what makes "encounters" with wildlife so special when they do happen. The point of all this is that on somedays no matter how determined we are to have an encounter with wildlife it just may not happen. There is still a way to get your fix though through film, books, pictures, and of course forums.
I've been checking out quite a lot of nature shows and documentaries online over the past few months. There is a lot of great streaming nature films out there that you can watch for free online. I have posted links to a few such films below. Please check them out sometime. Usually they run for about an hour each. Oh and feel free to add to this thread by commenting on the films and/or by posting additional links. Enjoy!

streaming videos below:

Man Among Wolves (national geographic)
http://www.stage6.com/user/biplab/video/1649926/

Return of the Eagle Owl (bbc)
http://www.stage6.com/Nature-and-Animals/video/1783500/Return-of-the-Eagle-Owl

The Life of Mammals- Opportunists (bbc)
http://video.google.com/videoplay?docid=1551335042426968388