Three other items of note: 1. Just about any big NAmer predator skeleton in a museum comes from a subject that was shot or trapped. I don’t think I’ve ever read or heard of a biologist finding an intact bear, cougar, or wolf skeleton, or a skull, for that matter. Bear carcasses resulting from natural death just don’t get found in coastal AK. In places where herbivores are abundant, sometimes you find carcasses that were stashed by bears, or carcasses near highways, and you do find shed antlers in the early spring. 2. Often, a prehistoric Asian ape, Gigantopithecus, is suggested as a possible ancestor to sasquatch, and yet all the evidence we have of that actual animal are two jaw fragments. 3. There are a significant number of accounts of hunters seeing bigfoot and either being too afraid of shooting something that seemed very human, or which they thought was a “wild man,” or which they didn’t think they had the firepower to kill outright. Or they were simply too dumbfounded. The one account I did read, from Canada, about a moose hunter who did shoot and kill what must have been a bigfoot, stated that the man was so startled by what he had killed — again fearing that it was partially human — that he left the carcass and told no one for some years.