Have we wondered about diversities,
that we see today in our vicinities,
which took millennia to established,
from the cradles of ancient humanity.
From braided streams of Africa,
we emerged and reached corners,
through land, rivers and ocean routes,
to develop colonies & settlements.
Yet, the path was never straight,
we have to adapt and propagate,
passing the traits to our offsprings,
to survive in newer conditions.
Those who moved to colder regions,
become thick build, for heat retentions,
while ones living in tropical climates,
have increased melanin & sweat glands.
The ones living in high mountains,
have gene variants for oxygen efficiency,
while ones living with the seas,
have developed larger spleen.
Our food habits also influence,
milk diet promote lactase persistence,
while agricultural ones amylase gene,
meat heavy diet have efficiency,
in fatty acid oxidation.
So, every race have inherent qualities,
which were embedded in their genes,
some were strong, some highly immune,
others more healthy, or remain younger.
It's indeed fascinating!
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