Oh boy, in a way it really funny and sad at all the same time. This short video clip of what was, at the time, supposed to be a bigfoot came out in late 2005. It was supposedly filmed by a guy name Mark Nelson. The story he told was that he was hiking with his girlfriend and filmed this "thing" after hearing some movement in the brush. It was film in Sonoma, California.
Even thought this is an old and thoroughly debunked clip, some people, even some "researchers", are fooled by this clip. Theses folks getting fooled just don't know much about the subject and are just not doing their homework on the clip.
Here is the clip followed by some useful information that may be helpful and explain why these hoaxes keep happening.