A pair of archeologists with Arizona State University has found evidence of different types of bone treatment among people that lived at the La Quemada archaeological site approximately 1,500 years ago in what is now modern Mexico. In their paper published in Proceedings of the National Academy of Sciences, Ben Nelson and Debra Martin describe their findings after studying bones excavated from the site.

Read more at: http://phys.org/news/2015-05-bone-analysis-reveals-violent-history.html#jCp