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Successful Out of Africa Migration

By Michael Alan Prestwood

Author and Natural Philosopher

Sun 4 Jul 2021
Published 5 years ago.
Updated 7 months ago.
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Successful Out of Africa Migration

70,000 BCE
Starting by 70,000 BCE

Through minor DNA changes, we know which early humans have descendants alive today. This successful “out of Africa” migration, the Southern Dispersal, took place around 70,000 to 50,000 BCE. Our ancestors proceeded to colonize all the continents and larger islands, arriving in…

Dark Skin Diversification: Africa’s intense UV radiation continues to select for darker skin, which protects against UV-related damage and helps in managing folate levels. The mention of some populations developing even darker skin tones could be linked to local environmental adaptations within the continent.

Michael Alan Prestwood
Author & Natural Philosopher

Prestwood writes on science-first philosophy, with particular attention to the convergence of disciplines. Drawing on his TST Framework, his work emphasizes rational inquiry grounded in empirical observation while engaging questions at the edges of established knowledge. With TouchstoneTruth positioned as a living touchstone, this work aims to contribute reliable analysis in an emerging AI era where the credibility of information is increasingly contested.

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WWB Menu
7 Jan 2026
Essay of the Week
The Architecture of Change: Finding Stability in Flux
Story of the Week
Heraclitus
Quote of the Week
“Everything is in flux.”
Weekly Crossroads!
1. Science »
Will the night sky have stars nearly forever?
2. Philosophy »
What does existence before essence mean?
3. Critical Thinking »
Is cause and effect certain?
4. History!
Who were the Presocratic Philosophers?
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