Sadly there are no Bigfoot creatures. Do not kid yourself, this continent has been thoroughly explored, by people who would have had no qualms about killing one for the pure glee of taking it to town. Wonderful campfire lore and nothing else.
Although I'm not ready to say that it's
impossible for bigfoot to be out there, you're probably right, EQ. IMO, it's
improbable that such a creature exists and I do not believe that one does.
However, knowing that Hiroo Onada (see link in my previous post) evaded multiple search parties for 30 years (along with two others for part of that time) on a
48 square mile populated island, it makes me wonder if a tribe of intelligent & secretive humanoids, born & raised in vast unpopulated forest land couldn't conceal themselves for 300 hundred years if they've determined to do so for their survival.
Even in the past 100 years (a little more than 3x the time that Onada hid himself), there haven't been very many people making concerted efforts to find these creatures. Consequently, I can't say with certainty that they do not exist.