The truth is that we don’t need a body to prove that Bigfoot is real.  We only need to look at what happens when people see one of these beings.  For the most part, their lives change forever.  Hell, some of them end up living in campers in the woods desperately trying to prove to the rest of the world that they aren’t crazy.  People don’t do that because they saw a shadow, I don’t buy it.  Only a real sighting can cause that kind of reaction and that alone is proof enough for me.