Tagged
evolution


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Righty vs. Lefty (6/9/10)

According to Scientific American, approximately 85% of people are right-handed.  This majority appears to be a result of evolutionary natural selection which catered to the majority of people who have speech/language control in the left hemisphere of the brain.  Because the left-hemisphere controls the movement of the right hand (and with it, the movement necessary for producing written language), thousands of years of evolutionary development resulted in a population that favors people with left-side language production, and right-handedness.

I did a lot of research.  But it doesn’t look like there is any data proving the evilness of left-handed people.  I know it’s true.  I just need some stats.

02:17 pm, BY smartestyear[1 note]

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The Epicanthic Fold (3/8/10)

The epicanthic fold is a skin fold of the upper eyelid that gives a large percentage of the world, including many East Asians, almond shaped eyes, in comparison to Caucasians’ (although given the relatively minute percentage of Caucasians in the world, it may be better to note how many Caucasians lack epicanthic folds).  It is hypothesized that the epicanthic fold is evolutionary as it protects the eyes from harsh UV rays, strong wind, and frigid temperatures.  To compensate for the lack of epicanthic fold, I have to wear mirrored goggles around all the time. 

10:53 am, BY smartestyear


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