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41,000 years ago Earth’s magnetic shield weakened by 90%, flooding the planet with UV rays. Our ancestors survived by living in caves, rubbing ochre on their skin as natural sunscreen, and sewing snug animal‑skin clothing to block the sun. Prehistoric ingenuity! 🌄🦴 #archaeology #survival

https://takfe.com/story/163-ho....w-early-humans-used-

How Early Humans Used Natural Sunscreen and Clever Clothing to Survive a Cosmic Crisis - Takfe.com

How Early Humans Used Natural Sunscreen and Clever Clothing to Survive a Cosmic Crisis - Takfe.com

About 41,000 years ago, something dramatic happened: Earth’s magnetic shield, which normally blocks harmful solar and cosmic rays, weakened by as much as 90%. Without that protection, dangerous ultraviolet radiation poured down, and brilliant auroras

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