73 Nettle as a distinct Bronze Age textile plant.
http://www.nature.com/srep/2012/120928/srep00664/full/srep00664.html
72 Emergence of social complexity among coastal hunter-gatherers in the Atacama Desert of northern Chile.
http://www.pnas.org/content/109/37/14754.abstract
71 Polar and brown bear genomes reveal ancient admixture and demographic footprints of past climate change.
http://www.pnas.org/content/109/36/E2382.abstract
70 Anatomically modern human in Southeast Asia (Laos) by 46 ka.
http://www.pnas.org/content/109/36/14375.abstract
69 Genomic Affinities of Two 7,000-Year-Old Iberian Hunter-Gatherers.
http://www.cell.com/current-biology/abstract/S0960-9822(12)00650-1
68 Ritual Black Drink consumption at Cahokia.
http://www.pnas.org/content/109/35/13944
67 Volcanic ash layers illuminate the resilience of Neanderthals and early modern humans to natural hazards.
http://www.pnas.org/content/109/34/13532.abstract
66 Mapping the Origins and Expansion of the Indo-European Language Family.
http://www.sciencemag.org/content/337/6097/957.abstract
65 A survey of genetic variation in Native American and Siberian populations reveals that Native Americans are descended from at least three streams of gene flow from Asia: after the initial peopling of the continent there was a southward expansion facilitated by the coast, with sequential population splits and little gene flow after divergence, especially in South America.
http://www.nature.com/nature/journal/v488/n7411/full/nature11258.html
64 New fossils from Koobi Fora in northern Kenya confirm taxonomic diversity in early Homo.
http://www.nature.com/nature/journal/v488/n7410/full/nature11322.html
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