Re: Holy Grail of American science!!
We're all primates. As for Bigfoot, there is no reliable evidence out there. It seems to be based on myth, mis-identification and hoax. There has been some recent evidence that the Yeti of Asia may be a species of bear which is yet to be classified, this is possible as apex predators/opportunists tend to exist in numbers that can be sustained by their environment (except man), so in a hostile environment such as the Himalayan range these animals could exist in very small numbers.
When considering Bigfoot, one also has to consider that the only primate to really colonise a temperate zone has been man. All primates originally come from Africa and have evolved to survive in more specialised environments.
Some have suggested that sightings of Bigfoot/Yeti may suggest that Gigantopithecus survived in small pockets. This animal existed in SE Asia and from fossil teeth found this primate was a vegetarian and probably a specialised one like the Panda. Humans are omnivores and as such have greater adaptability to new environments, a species with a specialiesd diet would have no hope of surviving in the more hostile climates of North America with the feast/famine seasonal changes.
The Florida area would make the most sense as a habitat for a large vegetarian primate as there is constant growth and primates prefer to live in sub/tropical zones. Do I believe there's a large great ape stomping around the everglades? No