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re: If we cloned ancient human DNA would they be deficient today?
Posted on 8/3/20 at 12:55 pm to mmmmmbeeer
Posted on 8/3/20 at 12:55 pm to mmmmmbeeer
quote:But it is also highly adaptable, isn't it? As far as we know we only have a rough idea of what parts do what, and that these areas of responsibility can overlap. Right?
Brain size may not have changed much over the years but the centers within the brain have assuredly evolved over the millennia. For instance, the medulla, responsible for instinctive survival, was likely much larger 50K years ago when humans had to rely heavily on natural, violent or evasive instinct to survive. Over the years, the need for a 'strong' medulla has likely lessened and, with it, the amount of neurons shooting through that portion of the brain.
1
Posted on 8/3/20 at 12:57 pm to Kujo
Only the females
Posted on 8/3/20 at 1:02 pm to Kentucker
quote:I think that was cultural rather than physiological. The brain was capable of that stuff before then, but it took a long time before someone thought of it. Once symbols and language were invented, it became possible to share knowledge and pass it down, so creativity exploded.
However, there is one organ that didn’t become modern until about 60,000 years ago, the brain. That’s when the “light of creativity” came on in our ancestors. Creative Man began to use symbology and language at a hyper level.
Posted on 8/3/20 at 1:22 pm to Jake88
quote:Maybe some of it was exaggerated or we read a bit too much into what she was doing, but there is little doubt that she could remember things and develop relationships with people and other animals.
Koko was a fraud and could not do all of those things.
But she was just an example of what our ancestors from several million years ago might have been capable of. A couple hundred thousand years is very recent by comparison.
And to further show how well Koko was able to integrate into human society:
quote:
Koko was reported to have a preoccupation with both male and female human nipples, with several people saying that Koko requested to see their nipples.
It's hard to think of something more human than "lemme see them titties".
Posted on 8/3/20 at 1:35 pm to Kujo
Cro Magnons were the first modern humans in Europe and they had a larger brain capacity than people today. (Humans first entered Europe about 40k years ago). So I'd say you would have to go back at least that far, probably closer to 100k years.
A more interesting experiment would be Neanderthals.
A more interesting experiment would be Neanderthals.
Posted on 8/3/20 at 1:43 pm to Kujo
quote:
When did dogs become domesticated from their wolf ancestors?
A good question. I read a while back that there was a dog burial in the European Paleolithic. They buried the dog with a mammoth bone in its mouth. So it's clear they were using dogs to hunt mammoth and even gave them burials.
Posted on 8/3/20 at 2:10 pm to Kujo
You are mixing up nutrition effects with evolution effects. Rapid changes in height and eyesight are probably due to the former.
To answer your question: I doubt the 10,000 year old DNA folks would be that much different if they were raised by modern families. Probably comparable to modern day Alabama.
To answer your question: I doubt the 10,000 year old DNA folks would be that much different if they were raised by modern families. Probably comparable to modern day Alabama.
Posted on 8/3/20 at 2:17 pm to SpqrTiger
quote:
if you took a field worker from Ancient Greece or Rome and transported him to today, you would be shocked at how strong they are.
I could beat two Romans at once...or three Greeks.
Posted on 8/3/20 at 2:33 pm to cssamerican
quote:
Well, 2k years ago people built Rome without computers and modern equipment, so I don’t think they were lacking intelligence. I think the Sphinx is dated to something like 4k years ago.
Meanwhile in Africa...
Posted on 8/3/20 at 2:49 pm to Kujo
Wait...I thought the bible was interpreted to state that humans have only been around for about 12,000 years. Adam and Eve and all that...
LOL...I kid!
Carry on...great thread.
LOL...I kid!
Carry on...great thread.
Posted on 8/3/20 at 2:55 pm to Korkstand
quote:
I think that was cultural rather than physiological. The brain was capable of that stuff before then, but it took a long time before someone thought of it. Once symbols and language were invented, it became possible to share knowledge and pass it down, so creativity exploded.
I don’t think it exploded. Rather, I think the advantages of using symbols and language were enhanced by the selection processes of evolution, causing the expression of creativity to begin being “written down” as 2D and 3D representations 50,000-70,000 years ago.
This was when modern man first began to leave evidence that he had evolved to our modern state, both cognitively and physically. Coincidentally, there is evidence that H. sapiens neanderthalensis had also reached a similar cognitive state during this period.
LINK
Posted on 8/3/20 at 3:32 pm to Korkstand
quote:
But it is also highly adaptable, isn't it? As far as we know we only have a rough idea of what parts do what, and that these areas of responsibility can overlap. Right?
Man, this is probably a complete softball question for many flavors of PHDs....alas, I'm just an idiot with a keyboard in front of me.
My understanding is that we've been able to identify the majority of the primary functions for each center within the brain and can clearly scan for normal/abnormal neural activity within those centers.
If you think of that neural activity as being similar to say the root system of a plant, tunnels in ant colonies, or looking at where rats most commonly live, the prevalence of each item will be considerably higher where there's the most activity. Neural pathways are much the same as we evolve to rely on certain skills or instincts more often than others over the years and these changes are edited within our DNA. A human living 50k years ago would have far different minor edits in their DNA than a modern day human's edits, leading to noticeable differences, both physiologically and intellectually.
Posted on 8/3/20 at 4:30 pm to Korkstand
quote:
quote:
However, there is one organ that didn’t become modern until about 60,000 years ago, the brain. That’s when the “light of creativity” came on in our ancestors. Creative Man began to use symbology and language at a hyper level.
I think that was cultural rather than physiological. The brain was capable of that stuff before then, but it took a long time before someone thought of it. Once symbols and language were invented, it became possible to share knowledge and pass it down, so creativity exploded.
Not necessarily. The current thinking is that there was a major bottleneck event 60 - 70kya (roughly coinciding with some catastrophic volcanic eruptions). If that is indeed true, then it's possible, perhaps even likely, that the only humans that survived to continue propagating had certain unique brain phenotypes that the vast majority of the human population of the time did not.
This post was edited on 8/3/20 at 4:35 pm
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