Alleged Alien Corpses Displayed to Mexican Congress

https://www.smithsonianmag.com/smart-news/alleged-aliens-corpses-displayed-to-mexican-congress-did-not-convince-scientists-180982900/

 https://groundzeromedia.org/9-15-23-dead-alien-pinata-w-william-galison What if various beings and other things have been visiting this world since prehistoric times?

https://desertshapes.blogspot.com/search?q=Forbidden+Archaeology