Humanity is rewriting the rules of biological evolution
In short: For billions of years, natural selection dictated the pace of life. Now, human activity is accelerating a new phenomenon: 'Unnatural Selection.' This video explores how our impact on the planet is forcing rapid, unexpected adaptations in wildlife.
By transforming grasslands into cities and polluting global ecosystems, humans have fundamentally altered the environments where species survive. These changes are driving distinct evolutionary shifts across various habitats.
Examples include cliff swallows in Nebraska developing shorter wings, female turtles in Chesapeake Bay growing larger, and two finch species on the Galapagos Islands merging back into one. Even apex predators like peregrine falcons are adapting to urban life by learning to hunt at night using city lights.
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Sources
- Summary by Intellect · source: Unnatural Selection - How Humans Are Changing Evolution | Free Documentary Nature
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