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10 Mysterious Extinct Human Species:


10 Mysterious Extinct Human Species:

https://www.youtube.com/watch?v=BwQWNpgdP6U

{Some are "mysterious" because many of us probably have never heard of them and science doesn't know much about them either. Some have contributed to the human gene pool and therefore are relatives. Others lived separate lives and we have nothing in common with them. We did however all exist as evolution tried to decide who should live and who should die out. We won the lottery it seems.]


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10/23/2017, 12:13 pm Link to this post PM Noserose
 
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Re: 10 Mysterious Extinct Human Species:


Fascinating how'd he process of evolution took place over thousands of years. Of course we do realize that science be damned, that the earth is only 6,000 years old and humans were created out of dust in the Gatdenof Eden. And we were created to have dominion over all other beings.

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10/23/2017, 12:38 pm Link to this post PM GoHawk Blog
 
Noserose Profile
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Re: 10 Mysterious Extinct Human Species:


Yeah...it seems to make sense huh? emoticon

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10/23/2017, 12:48 pm Link to this post PM Noserose
 
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Re: 10 Mysterious Extinct Human Species:


Remember that evolution actually takes millions of years.
The odds of viable mutations from radiation or gene splicing viruses is very tiny.
Then there has to be some advantage that would select for it.
And finally, there has to be an isolated gene pool small enough for inbreeding to make the new mutation to take off.
That takes a great deal of time, even if the process very suddenly become visible.
10/23/2017, 3:02 pm Link to this post PM Rigby5
 
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Re: 10 Mysterious Extinct Human Species:


"Some are "mysterious" because many of us probably have never heard of them and science doesn't know much about them either."

... and how many of them might not have actually gone "extinct" but rather made contact with other human SUB-species and so merged, evolved, into the more successful groups that we know more about because their biological success makes them more plentiful in the fossil record ?

Rose, a few years ago we discussed the new notion, that Neanderthals merged with homo-sapiens, when it was a radical new theory.

So not to be critical, rather to make a point about science that has political ramifications on how to best to deal with the science deniers of various stripes.

It is nature of science to apply
Occam's razor -
Simple English Wikipedia, the free encyclopedia
https://simple.wikipedia.org/wiki/Occam%27s_razor
Occam's razor (or Ockham's razor) is a principle from philosophy. Suppose there exist two explanations for an occurrence. In this case the simpler one.

So given the new evidence of how those "different species" were actually more like different races of same species ( not that race is very valid scientific term, I know) emoticon
... needs to be applied, unless we just repeat, discuss, the same arguments over and over again, so just play into the science deniers evil gamesmanship.

I am sorry if I seem critical.
That is just the nature of the Internet, I'm thinking, but given what we have learned about the fate of the Neanderthals should it be applied as the best explanation for similar situations ?

Last edited by Geezess, 10/23/2017, 7:17 pm
10/23/2017, 7:15 pm Link to this post PM Geezess Blog
 
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Re: 10 Mysterious Extinct Human Species:


"Remember that evolution actually takes millions of years." and only by mutation ?

Rigby, in my high school biology 1 class I asked a question suggesting that.

My good teacher was thrilled that I given him a teaching opportunity that he loved, and throw out the lesson plan to to teach our whole class, instead, to explain that it not about slowly mutating like the prostitution in the Monkey Trails suggested (a great spell error that I like) emoticon
... rather the mutations are always there in the gene pool, anyway, and only manifest and only effect the genetic drift, manifest, IF AND WHEN ONE MUTATION becomes truly advantageous because of changes in the environment.

So in reality big changes both occur much more rapidly than the common thinking account for, and that the "missing links" are not in fossil record for a couple of good logical reasons.

Clearly the hybrid of the old and new species, in the classic Darwinian model, are few in number so rare in fossil record.
They do not alway appear until there until new adaptation, the new genotype, is biologically successful and so dominates the fossil record. That is long time sure, but in population bottleneck it is those few individuals with the new genotype, full blown, that succeed biologically.

THEN relative to the new science on the fate of the Neanderthals and how they are more like a different human race than a difference species as was erroneously presumed
...(by petty racist Victorian people, anyway ???) ... how hard do think it would be to find in the fossil evidence of there being, suddenly, in evolutionary terms, in the past half Century in real time, a huge increase in mixed race people ?

I having been think of started about about if mixed race children ... err, sorry mixed race adults... emoticon are ... as in my experience more beautiful, so more desirable, so likely to be an evolutionary trend ?

See: Mixed race people 'taller and smarter', Edinburgh Uni study says ...
metro.co.uk › UK › Science

But how hard would the "missing links" be to find, until humanity looks like the younger child here, which I have read might the result of genetic drift if the races mixed completely:

Image


  

  
 
10/23/2017, 7:58 pm Link to this post PM Geezess Blog
 
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Re: 10 Mysterious Extinct Human Species:


Genetic change can be very variable. It usually takes millions of years but it can be rather swifter than that.
10/24/2017, 12:15 am Link to this post PM Yobbo
 
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Re: 10 Mysterious Extinct Human Species:


Yobbo, I'll agree that mutation driven genetic draft takes a very long time, but do you agree that classic Darwinian (rapid ) evolution happens when there is there is some sort of environmental change ?

Then, does world travel being easy, and the various social changes like ending the Caste system in India and making mixed race marry legal, in the West count as being fairly major environmental changes ?

  
10/24/2017, 2:04 am Link to this post PM Geezess Blog
 
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Re: 10 Mysterious Extinct Human Species:


I agree.
It depends a lot on if you count the mutation part or not into the evolution, since that is the slow part.
And I agree the natural selection part can happen in just a few generations possibly.
The smaller the gene pool, the faster natural selection can manifest.
10/25/2017, 6:39 pm Link to this post PM Rigby5
 
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Re: 10 Mysterious Extinct Human Species:


quote:

Rigby5 wrote:

I agree.
It depends a lot on if you count the mutation part or not into the evolution, since that is the slow part.
And I agree the natural selection part can happen in just a few generations possibly.
The smaller the gene pool, the faster natural selection can manifest.



A great point that explains the mystery species of humanoids, that came about in relative isolation.

Then they disappeared from the fossil record rapidly, when contact with, and by interbreeding when they came came into contact with those more biologically successful subgroups that had enough population to be spreading by exploration and
emigration.

10/25/2017, 7:07 pm Link to this post PM Geezess Blog
 


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