It kinds of reminds me of Pangaea meaning all earth, studies show that the earth was actually one big body and after continental drift, which divided the earth into various regions and continents, reading the above seems life actually originated from a single being and with time evolution and division started to take place, hence the coloring of the eyes and also been able to use our hands for grabbing which was initially used for locomotion, I think you might find the movie Lucy quite interesting do check it out

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