20. Neanderthal Mental development
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Mental Development
Neanderthals were able to dominate their homes for several centuries due to their increased brain size of about 1450 cc. However, recent studies have shown that Homo Neanderthalis may have gone extinct due its brain structure, rather than size.
Sources
University of Oxford. "Neanderthal brains focused on vision and movement leaving less room for social networking." ScienceDaily. ScienceDaily, 19 March 2013. <www.sciencedaily.com/releases/2013/03/130319093639.htm>.