Just like the weather, nature made sure that there are enough influencing factors that cause changes in hand-preference, like external, societal and cultural pressures, to result in various possible genetic combinations and chance influences.
This makes the entire process of hand preference unpredictable by design.
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637 reads
CURATED FROM
What causes some people to be left-handed, and why are fewer people left-handed than right-handed?
scientificamerican.com
2 ideas
·1.4K reads
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