The brightest? Not at the beginning.
The brain seems to be an example of that old "nature abhors a vacuum" cliche (which it actually doesn't, btw). It appears that the first radical change in our ancestors that led to humanity was standing upright. This then freed the hands to "do more" and pulled the brain along to develop further (fill up the vacuum?)
to keep up.
Along the way came speech and sentience. And all we really wanted to was to run faster and farther!
The most vertical!
The brain seems to be an example of that old "nature abhors a vacuum" cliche (which it actually doesn't, btw). It appears that the first radical change in our ancestors that led to humanity was standing upright. This then freed the hands to "do more" and pulled the brain along to develop further (fill up the vacuum?)
to keep up.
Along the way came speech and sentience. And all we really wanted to was to run faster and farther!
The most vertical!
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