I started out very skeptical of the existence of Bigfoot and his international family. But the more I read from credible, as opposed to overly excited nut cases, the more convinced I am that there is something, as yet, undiscovered out there. I am certain that many reports come from misinterpretations and out right hoaxes; however, there are reports and possible photographs from highly reliable witnesses. Russia is so certain the beast exists they have declared it an endangered animal.
I live within walking distance of a large state park. When that park was being established a park employee reported sighting a "bigfoot" who was actually looking in a window of the newly built office. The employee was so startled he turned and ran his arm through the glass window, causing himself bloody damage. The report was (possibly still is) in the county sheriffs office. Big foot has been reported several times by campers since and the powers that be have told employees that such reports are to be ignored or, if possible, relegated to misleading wildlife such as bears (which are extremely rare here). Anyway such reports are to be covered up in some fashion.
Such beasts have been hunted down since before recorded history so, of course, this beast is very wary of humans. In their place; wouldn't you be?