I just watched a show on the History Channel about an area in Canada where they believe they've found
some proof of a huge ape like creature living there. They DNA tested blood left behind in a
massive footprint, and it came back as ape like, but to no known species.
Also, friends of mine who own a horse farm out in the middle of nowhere in eastern PA swear up and down on their lives that they witnessed a Bigfoot like creature one night roaming in the woods. They still get chills and goosebumps when they talk about. And they slept with guns by their side that night
I personally believe they exist, there have been too many eyewitness accounts over hundreds of years, we just haven't found the hard proof yet.