Why Humans Live So Much Longer Than Most Wild Animals ?
Avern
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Why Humans Live So Much Longer Than Most Wild Animals ?
2 022 просмотра · 2 нед. назад
Avern
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2 022 просмотра · 2 нед. назад
Why do humans live so much longer than most wild animals?
A mouse is lucky to survive its first year in the wild. A chimpanzee can begin showing sharply increased mortality relatively early in life. Yet humans can survive into their seventies, eighties, and sometimes far beyond—even when modern medicine is completely removed from the equation.
So what happened?
The answer isn't simply that humans have “better” bodies.
Most wild animals face something called extrinsic mortality—predators, starvation, disease, accidents, and other dangers that kill them before old age. Evolution therefore often favors reproducing quickly rather than spending precious energy maintaining a body for decades.
But humans changed the equation.
Tools, fire, cooperation, shared food, hunting, and group defense gradually reduced many of the dangers that normally kill animals young. And once humans began surviving into old age, something incredibly unusual became possible: grandmothers could continue contributing long after they stopped reproducing.
The Grandmother Hypothesis suggests that older women who gathered food and helped feed grandchildren could allow their daughters to reproduce sooner, potentially increasing the survival of future generations.
In this video, we explore:
• Why most wild animals die young
• Extrinsic mortality and evolutionary math
• Mutation accumulation theory
• Antagonistic pleiotropy
• Disposable soma theory
• Why naked mole rats can live for decades
• Why some whales can live for over a century
• Why humans evolved unusually long lifespans
• The mystery of menopause
• The Grandmother Hypothesis
• How ancient humans could reach old age
• Why average ancient life expectancy can be misleading
• How cooperation may have transformed human survival
Humans didn't simply evolve to live longer.
We evolved a way of life where staying alive—and staying useful—could benefit the generations that came after us.
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