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Hominid Lineage Essay

1016 words - 5 pages

Science is an evolving field as new evidence is found what we previously believed is challenged, as is the case in the Hominid Lineage. In 2005, a complete skull was found in the republic of Georgia and it was studied extensively for eight years. The find and study of this fossil known simply as skull 5 was by David Lordkipanidze, a paleoanthropologist at the Georgian National Museum (Wilford 2013). Too truly understand the importance of this find, a few things need to be analyzed. Firstly, what was previously known before this find like fossil records and lifestyle, and lastly the possible changes that can be made to what science community knows because of this find.
For years now the ...view middle of the document...

The next step in our evolution is Homo erectus, the inventor and the traveler. Homo erectus was the first to ever leave Africa and it did so at a rapid rate. The innovation of stone tools are attributed to erectus as well because the Acheulean hand axe came on to the scene around the same time of erectus as well as other bifacial stone tools. Homo erectus eventually started forming into other variations like heidelbergensis after 600,000 years and eventually into homo sapiens which came on the scene 200,000 years ago (Price and Feinman 2013).
Physical evidence like fossils are very important, but what do they tell us about early hominid behavior. How they lived, and what kind of tools they used are both relevant topics. As suggested by physical evidence early humans were hunter gatherers; although some speculate that early hominids were scavengers and they themselves where the hunted. They did not hunt, but rather where opportunistic carnivores. It wasn’t until Homo habilis that stone tools started to emerge. These tools were known as the oldowan the earliest tools ever found. The tools seemed to have been used for breaking bones among other things, facilitating late stage scavenging. These tools required planning to create proving that these hominids had higher cognitive abilities. Oldowan tools then transitioned into Acheulean tools. The exact dates are not known however, it is speculated that perhaps the authors of acheulean tools could have crafted oldowan tools. The reasoning behind this hypothesis is that maybe the authors or Acheulean tools made simpler tools to perform tasks of less complexity (Conde-Cela 2007). The complexity of creating tools also suggest that gradual change from just acquiring nuts and vegetation as a primary source of their diet to introducing more and more meat. This can be witnessed by the evolution of teeth, they become smaller and smaller...

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