"--Also, the air is really thin at those altitudes. Humans aren't thinking properly with those blood oxygen levels. If you're hunting in the Andes and you don't expect to see a bear and suddenly you see one standing on it's hind legs in the distance, of course it's going to look like a monster. They did genetic tests on the fur of a pelt that someone claimed came from a yeti, and it came back as the DNA of a short-faced bear that was supposed to be extinct. Of course they lost the records because people were sloppy back then, so there's no way to prove it, but IF short-faced bears were still surviving in small numbers way up in the mountains it could explain sightings there. Not in North America though, the sightings there don't have a convenient explanation like that and--"