Native American spiritual beliefs have as much right to exist as any other formal religion and in fact, as someone else here suggested, there are even biblical precedents that could help explain Bigfoot’s existence. Look up the story of Jakob and Esau to see what biblical scholars suggest about the origins of modern day bigfoot.

Regan Lee’s question about shape-shifting is worth consideration, since it is mentioned in First Nations story-telling traditions, but personally, I still am drawn toward a dimensional explanation for BF’s apparent ability to pop in and out of sight, to their ability to not be killed by conventional weaponry and to their avoidance to capture and containment.

There is a fascinating post on Cryptomundo’s site about events at Lawrence Livermore Labs in California about Bigfoots in captivity, which suggests that the creatures at least possess the ability to make themselves invisible.

http://www.cryptomundo.com/bigfoot-report/invisible-bf/

Lastly, though it’s in defiance of ‘occam’s razor’ when we assume that what appears to modern research as a fantastical hypothesis like interdimensionality, we cannot just ignore witness testimony that supports it. I started collecting the weirdest bigfoot stuff in my own blog, here: http://bizarrebigfoot.blogspot.com/2010/08/bizarre-bigfoot.html

Check it out if you wish..

SAR