Are humans evolving faster or slower?

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Re: Are humans evolving faster or slower?

Post by intellectualpersuit »

How are human's pets evolving? What are the effects on dogs and cats that live with humans, any ideas?

I want to believe that eventually Snoopy will be a real thing, then Brian from Family Guy, Garfield too, all coexisting with humans.

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Re: Are humans evolving faster or slower?

Post by Kriegsspiel »

Came across this recently.
Until the last ten years it was widely believed that cultural evolution had taken over from genetic evolution in our species. When farming replaced hunting and gathering, something fundamentally changed in the relationship between us and our surroundings. We no longer had to change genetically to fit our environment. Instead, we could change our environment to make it fit us.

That view has been challenged by a research team led by anthropologist John Hawks. They found that genetic evolution actually speeded up 10,000 years ago, when hunting and gathering gave way to farming. In fact, it speeded up over a hundred-fold. Why? Humans were now adapting not only to slow-changing natural environments but also to faster-changing cultural environments, things like urban living, belief systems, and the State monopoly on violence. Far from slowing down, the pace of genetic change actually had to accelerate
A Paleolithic human 100,000 years ago would have had less in common with you or me than with someone living 100,000 years earlier or even a million years earlier. Human evolution has been logarithmic—the changes over the past 10,000 years exceed those over the previous 100,000 years, which in turn exceed those over the previous million.

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Re: Are humans evolving faster or slower?

Post by bigato »

Nice! So the correct answer to the OP from Genetics is “logarithmically faster”.

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Re: Are humans evolving faster or slower?

Post by unemployable »

bigato wrote:
Mon Jul 15, 2019 6:57 pm
“logarithmically faster”.

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Re: Are humans evolving faster or slower?

Post by Ego »

Not exactly evolution, but interesting.... ... 50faed696d

Skeletal records show that for hundreds of thousands of years, people had beautiful skulls: straight teeth, wide jaws, forward faces, large airways. Robert Corruccini, an emeritus anthropology professor at Southern Illinois University, found perfectly straight teeth and wide jaws in children’s skulls from pre-Roman times among Etruscan remains in southern Italy.

Then, about 250 years ago, our faces began to change. “Etruscan kids had to chew once they were getting off breast milk. Babies have remarkably powerful chewing capabilities.”) Just like diabetes and heart disease, malocclusion — the misalignment of jaws and teeth — followed industrialization around the globe.

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