I am decidedly skeptical about 'Bigfoot' given the total lack of any kind of physical evidence after some forty odd years of looking. The American northwest is not that empty or remote it is *very* hard to believe that a population of large animals - even with Human-like intelligence - could have so thoroughly concealed themselves from the hunters, hikers, rockclimbers, Sasquatch seekers, etc. that regularly roam the area.

I cannot speak for the Himalayas, a considerably wilder and more distant area, but I seem to recall somebody a while back posting an argument that the 'Yeti' was in fact a kind of bear not a hairy giant man-ape.

I would like to believe another species of homonid shares the Earth with us, but think it unlikely. It is far more probable that the 'Almas' are either entirely creatures of folklore or based on more a primitive and possibly more hairy tribe of Homo Sapiens Sapiens driven into the remote areas of Central Asia by their more technically advanced competitors.