I don't know if Bigfoot or the Abominable Snowman exist or not. I don't know if there is a monster or monsters in Loch Ness (and Lake Champlain and Lake Okanogan, and others) or not. I do know that you cannot prove a negative proposition, and I'm familiar with the old saying that "absence of evidence is not evidence of absence." As to the possibility of Bigfoot, let's analyze it a bit.
People complain that no bodies or even bones are ever found. I've been hiking in wilderness areas all of my life, literally from Alaska to Tierra Del Fuego, on tundra and glacier, in forests and jungles and deserts, and I rarely see even a dead deer or even antlers, for scavengers are amazingly effective. I have seen one fresh road kill bear, and only two, maybe three live cougars, but never a dead one or its bones. A Bigfoot or ABSM would presumably be rare and intelligent and elusive, so the absence of bones is, indeed, not evidence of the absence of Bigfoot.
The Pacific Northwest eco system is a fairly rich one, especially the temperate coastal rain forests, and I have seen and heard evidence of numerous black bear in, for example, the Marble Mountains of northwest California. If Bigfoot is a primate and, like some primates, omnivorous (as are bears) such a creature could survive there.
But these creatures are reported in Texas, across the South in the US, and along the US East Coast. Forests are fairly extensive in these areas, but they are much broken up by roads, farms, cities, and towns. The problem is that if Bigfoot is a physical animal there has to be a breeding community large enough to provide some genetic diversity and prevent the accumulation of recessive traits, and dense enough to permit potential mates to find one another. The same applies to lake monsters.
So it would seem that at least some of the reports, at least those in more populous regions, are probably mistaken identity cases, hoaxes, hallucinations, or reports of something other than a physical animal subsisting off our eco system. Perhaps, if they exist at all, they are (as has been suggested) creatures from some deep subterranean realm, or from ufos, or from some sort of parallel universe, or perhaps they are paranormal entities. So the mystery continues. William B Stoecker
