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Sapiens
Chapter 4 · 0.5 min · 4 of 21

The Flood

A chapter summary from Sapiens by Yuval Noah Harari.

Australia and the Americas show a recurring pattern: large animals disappear soon after humans arrive, and the sequence repeats across islands and continents.

— From Sapiens by Yuval Noah Harari

When sapiens expanded into new regions, the landscape did not merely gain a clever ape. It lost creatures that had survived ice ages and volcanoes for millions of years.

Australia and the Americas show a recurring pattern: large animals disappear soon after humans arrive, and the sequence repeats across islands and continents. Coincidence becomes harder to defend when the timeline keeps matching footprints.

Alongside this comes another disappearance: other human species. Neanderthals, Denisovans, and others vanish, leaving a single branch where there were once several. Whether through competition, absorption, or violence, the result is the same: one species inherits the planet.

Power begins here as ecology. Dominance is not only building temples. It is also deciding, often unintentionally, which lives continue and which become fossils.

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