Unbound: How Eight Technologies Made Us Human and Brought Our World to the Brink
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emerging ...
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Homo erectus,
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beginning approximately 250,000 years ago, the first modern
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humans began to appear in Africa,
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Homo sapiens,
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“thinking man,”
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Neanderthals
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Between twenty-five thousand and fifteen thousand years ago,
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Alaska,
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North and South ...
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early hominids
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over four million years,
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emerging ...
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nearly two millio...
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modern h...
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at most a quarter of a million yea...
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“revolution”
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metamorphosis,
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The first three metamorphoses occurred literally millions of years ago,
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lethal weapons,
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full upright posture and bipedal locomotion,
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sexual be...
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f...
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clo...
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dwell...
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nuclear f...
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The next three metamorphoses occurred thousands of years ago, among populations of biologically modern humans. These tran...
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lan...
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symbolic commun...
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tribal and ethnic id...
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domestication of plants a...
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birth of civili...
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massive increase in the earth’s huma...
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seventh metamo...
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industrial rev...
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only a few centu...
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has now become the primary threat to the earth’s environment.
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eighth metamorphosis
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digital communi...
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For every primate group there is a “we” and
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“they”—the insiders who belong to one’s own group and live in one’s own territory versus the outsiders who belong to other groups and live in alien territories.
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Primates also distinguish between two fundamentally different types of ownership: communal property and personal property.
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four distinct types of social bonds that are also fundamental building blocks in all human societies.
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maternal relationship
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social hier...
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friendships and a...
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sexual relati...
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The maternal bond tends to be stronger and more intense among mammals than other animals simply due to the physical and emotional attachments formed during the weeks, months, or years that every female mammal spends nursing her young.
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And because primates are specially adapted to living in the trees, the maternal bond is more powerful and lasting among them than it is among any other group of mammals.
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life-or-death significance of intimate physical contact between the primate mother and her offspring dwarfs that of any other higher animal.