![]() ![]() ![]() To better understand the distinct evolutionary. Our main point: Chimps are still around today because humans did not evolve from living chimps 1 both humans and chimps evolved from a now extinct common ancestor. In the following pages, we provide answers to this and related questions. ![]() Frequency distribution of elimination half-times. Such questions can provide excellent teaching moments. Obsidian is as useful today, as it was to these civilisations, albeit in the different role, of discerning interactions between local societies, elucidating aspects of everyday life, and tracing palaeomobility and trade networks. With permission from American Society for Microbiology.) A. Despite advances in metallurgy, which were comparable with those of contemporary European states, obsidian was never supplanted by metal implements and weapons, until the Spanish conquest. Zotero saves your citation library to your local computer, but syncs with multiple. Obsidian artefacts were the mainstay of everyday life of indigenous populations and obsidian was also used in manufacturing weapons. If you need to work from multiple computers or locations, use EndNote or Zotero. In this paper, the presence of obsidian in correlation to tectonic activity and volcanism of South America is presented, along with the main sources in their regional geological context. The importance of obsidian in geoarchaeology and palaeoanthropology has already been demonstrated in sites from all around the world. The focus of this paper is the obsidian quarries of the Pacific coast of pre-Columbian South America, which were exploited by the indigenous populations since ca. ![]()
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