The movement of fluids, or circulation, evolved around 3.5 billion years ago in single-celled organisms to distribute nutrients and remove waste. Blood, a specialized fluid carrying nutrients and waste, evolved much later, around 1.2 billion years ago in multicellular organisms. It evolved to feed internal cells and carry away waste. As oxygen levels rose and multicellular life emerged, blood evolved to transport oxygen and nutrients to cells.
STORY
Blood Emerges
By Michael Alan Prestwood
Author and Natural Philosopher
Tue 9 Jul 2024
Published 2 years ago.
Updated 2 years ago.
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Blood Emerges
1.2 Billion Years Ago
Michael Alan Prestwood
Author & Natural Philosopher
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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