Again not a new article but I found it interesting:
http://www.academia.edu/3610859/The_...ana_Roo_Mexico
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The Arrival of Humans on the Yucatan Peninsula: Evidence from Submerged Caves in the
Again not a new article but I found it interesting:
http://www.academia.edu/3610859/The_...ana_Roo_Mexico
Sent from my iPad using Tapatalk
"Men wanted for hazardous journey. Low wages, bitter cold, long hours of complete darkness. Safe return doubtful. Honour and recognition in event of success."
Earnest Shackleton
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