African Fossil Record Contributions
African Fossil Record
African Fossil Record Contributions to the 'Out of Africa' Theory
The African fossil record represents the foundation upon which modern archeologists base many of their theories concerning the evolutionary history of modern humans (Klein, 2008). When combined with DNA sequencing, the African fossil record shows that modern humans probably emerged about 200-150 ka (thousand years ago) and expanded into Eurasia as recently as 50 ka. This 'Out of Africa' theory would therefore not exist without the African fossil record.
The human fossil record reveals that humans split into three morphologically distinct species approximately 500,000 years ago; Homo sapiens, H. neanderthalensis, and H. erectus, in Africa, Europe, and Asia, respectively (Klein, 2008). The African fossil record contains no evidence that Neanderthals were ever in Africa, therefore it is assumed that modern humans emerged in Africa in the absence of a Neanderthal contribution (Klein, 2011). The emergence...
Wicked Problem: Royal Dutch Shell and Its Response to the Nigerian Oil Spill Major oil companies such as Royal Dutch Shell are responsible for hundreds of oil spills every year that cumulatively involve millions of barrels of oil. The harmful effects of such oil spills on the environment is well documented of course, but less well documented are the different types and levels of responses that are used in response
But that doesn't really change the history or the reality of any event. Emancipation should have been our first concern but fortunately it was not even one of the main concerns let alone the first one. Lincoln along with other political heavyweights were more interested in appeasing the South and various efforts were made to please the Southern elite since secession was an imminent possibility. So for various political and
Cultural and Climate Effects on Human Evolution Cultural group selection's contribution to the progression of cooperation among humans is intensely contested. A majority of human behavior impacted by culturally diffused philosophies (including religious views) does not seem adaptively sensible. Whether or not strong socio-biological reasons are available for explaining such behavior marks the focal point of arguments between sociologists and critics of sociology. There are, in theory as well as (possibly)
International Regulation of Tourism in Antarctica Since the mid-1980s, Antarctica has been an increasingly popular tourist destination, despite the relative danger of visiting the largest, least explored -- and arguably least understood -- continent on earth. Beginning with the 1959 treaty establishing Antarctica as an international zone free of claims of sovereignty by nation's that had been instrumental in establishing research stations there, there has been almost constant negotiation about how
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From the point-of-view of the variation and flexibility of the species such cultivated woody crops rank as no more than cornfields. While the tree farms are conveniently be stretched on the private lands, national forests those are considered priceless reservoirs of most of the biological diversity of the nation cannot expand so easily. The commercial logging is considered as the greatest danger for survival of the national forest system.
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