I think the most logical answer is that they were rejected by ancient aliens who scooped them out of the sea, did their experiments, then long ago returned them to us. Basically dumped them in the mountains.
105 posted on 09/22/2015 1:55:31 PM PDT by ETL
(ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)