Being open minded I purchased a journal called "Nexus". Most people I find are unwilling to let their minds run riot and conceive of what is purportedly inconceivable. In the said journal is a startling picture from 1894 of such a Sasquatch. I recommend you purchase said journal and read the article and wonder what might just be. Open your minds and pontificate.
Ever tried the Fortean Times? http://www.forteantimes.com/ It is a home for every Alien abductionst, cryptozoologist, conspiracy theorist and Big Foot enthusiast. Right up your alley, you nut job.
Every culture from Inuit to Aussie Aborigine has stories of wild men. Larger species would be difficult to survive to this day and age without discovery and very rarely is a new large species of animal discivered. Really interesting stuff and new animals do turn up every year.
I explained that badly but each significant ecosystem which contains apes / monkeys has a great ape at the pinnacle e.g. gorillas or orangutans. However there isn't a great ape species in the Americas, however one would assume that given the other great ape species any specimens would be found in south America