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I came here to study <a href=" http://expodesign-eu.eu/?cheap-affordable-essays#abode ">essay writing service nursing</a> Research leader Larry Benson said the petroglyphs consist of deeply carved grooves and complex dot patterns. The glyphs appear to be a "series of vertical, chain-like symbols and a number of smaller pits deeply incised with a type of hard rock scraper," the researchers wrote in a statement, noting that depictions of humans, animals or hand symbols are notably absent from the carvings.
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