outhouse
Atheistically
My take if they exist is low population density, nocternal, and they only way they could have survived cavemen would have been there natural fear of humans.
Why isn't there more footage of a sasquatch?
Many critics of the sasquatch phenomenon point to the scarcity of photographic or video evidence as a reason to doubt the existence of the species. Although no one has ever debunked the best footage that is available, skeptics continue to question why sasquatch images are so rare. Quick logic suggests there should be miles of footage if the animals really do live in our forests, especially considering how much footage there is of other large North American mammals.
It is possible to obtain footage/photos of these particular animals, but the odds of this happening randomly are sharply reduced by particular factors:
-- Sightings of sasquatches are unpredictable. They occur only in rural areas. Very few people in rural areas keep a decent camera handy at all times.
-- Witnesses consistently describe initial confusion and/or fear during their sighting.
-- Sightings typically last only a few seconds. A camcorder's auto-focus, by itself, takes a few seconds to adjust.
-- Very few people go out looking for these animals for the purpose of photographing them. Most bigfoot researchers are "arm chair" researchers.
-- Sasquatches seem to be on the move most of the time, following deer/elk herds like nomadic predators, or hunter-gatherers. There are no dens or nests that are occupied continuously or predictably. Their temporary dens and nests are quickly abandoned when approached by humans, so there's no easy way for wildlife paparazzi to catch them at home.
-- The only practical opportunities for footage or photos with everyday cameras are situations where a sasquatch is observed out in the open, in the day time, from a distance, for several minutes. Those situations are rarely described.
-- The typical habitats are dense, brushy, quiet forests, where human intruders can be heard well before they get within visual range. In those environments a person can be completely invisible to someone standing less than 10 feet away.
-- Sasquatches are likely nocturnal. Hunters and fisherman almost never hunt after dark without a flashlight or lamp.
-- Sasquatches are likely intelligent. Just as their bodies are much larger than humans', so, apparently, are their heads, and presumably their brain cavities as well. They don't live like humans, but they are certainly more complex than other ape species.
-- They may be the most elusive land mammal species of all, yet they receive the least amount of effort or attention from the government.
Nobody Looks for Bigfoot Remains
No serious work has ever been done to look for remains of surviving wood apes in areas where they are rumored to reside. No one should expect remains of such an elusive species to be found, collected and identified without some effort.
Very few remains of ancient wood apes have ever been found in Asia, where they were much more abundant. Millions of gigantos (a branch of the wood ape line) lived and died in Asia over the ages. All the remaining physical evidence we have of them could fit into a few shoe boxes. Fossils of any land animal are very rare.
Remains do not become fossilized very often, but unless that happens, all the remains will, in time, become completely reabsorbed into the ecosystem. There would be remains of animals everywhere if remains were not naturally recycled, including bones and teeth.
Fossils or preserved bones of wood apes may exist in the Americas, but they will be exceedingly rare, because these animals are rare to begin with, and only a tiny fraction of that population will die in locations and soils that will preserve bones somehow. Odds are slim at best that any bones (which are normally fragmentary) will be found, collected and identified unless a focused effort is made to look for them. Until efforts are made in many places, over a long period of time, no one should be scratching their head wondering why "we" don't have any physical remains.
