User blog comment:ChrisL123/Smarter or tribal?/@comment-32656-20110601155616

Remember that larger brains does NOT necessarily mean they are smarter, or anything of the sort.

To quote, from wikipedia:

"The evolution of Homo sapiens over the past two million years has been marked by a steady increase in brain size, but much of it can be accounted for by corresponding increases in body size. There are, however, many departures from the trend that are difficult to explain in a systematic way: in particular, the appearance of modern man about 100,000 years ago was marked by a decrease in body size at the same time as an increase in brain size. Even so, it is notorious that Neanderthals, which went extinct about 40,000 years ago, had larger brains than modern Homo sapiens."

And the Neanderthals died out. Brain size is NOT everything.