As TGS mentioned, there is no evidence that humans evolved simultaneously in different locations outside of Africa.  All modern humans are descended from the second successful African migration.

 

There is a possibility, however, that some Austrolopethicus or Homo Erectus type species evolved in multiple locations.  For example the recently discovered "hobbit" remains found in Indonesia.   

Due to a variety of human techniques and natural conditions, nomadic hunter gatherer groups can have very low birth rates.  One big factor could be that women under alot of physical exertion (such as modern professional and serious amateur atheletes) do not ovulate as much. Of course, not every day is a work out day for nomadic hunter gatherers, but they do an awful lot excersize just living.  Then factor in birth control techniques.    

Originally posted by BIG D so the 2nd migration were humans??

Yes.  

 

Don't fall into the trap that Opuslola has been living in.  Dating on all of this is solid.  There have been many Glacial Maxxs and mins.  I'm not sure what you mean on the rest of this.

Good point.  For years the experts said that there was no chance of humans and Neandertals mixing.  Now, new DNA tests suggests that mixing occured.  Also there has been a fossil discovery in Spain of a young girl that appears to have  both human and Neandertal physical features. 

Originally posted by TheGreatSimba Also, as cryptic mentioned, homo sapiens were not the only intelligent beings on the planet. Neanthertals and the recently discovered "hobbit" species were two different non-human intelligent beings that went extinct.

As a side note there are signs that Home Erectus lasted alot longer than previously thought. Our ancestors probably also met some Homo Erectus remnant populations in Indonesia and northeren China.   It looks like the global "wildman" legends are based on distant fact.

 

 

I think this was the most likely result.   Human nature being what it is,  I think it is a good bet that some early humans took Neandertal slaves or concubines.  Especially as it now appears that the Neandertals were more intelligent (and thus being able to adapt more to human groups) than previously thought.

How is that rascist?  It is historical fact.  Even today, some tribal peoples in Tanzania expel or kill albinos. As late as WWII, rural Tanzanians viewed Europeans as only partially human (light skin resembled dead people) and believed that the British consumed the blood raised for the war effort.  Of course, some Europeans viewed Africans in the same light.

Originally posted by medenaywe .People that were result of  incest and abnormal were expelled from communities...Neandertals and hobbits are part of some evolution but still Is not clear, were they expelled like "unordinary" trials ,that have mixed among themself centuries ago or those types are straight line from very beggining of humanity?

While human societies regularly expelled unordianry people (one island off of British Columbia was the souce of many bigfoot legends and was used by local tribes as a banishment place for the mentally ill, chronic birth defects, sex deviants etc,  Hobbits and Neandertals are on completely seperate evolutionary lines from humans.

 

As to hypothetical, but highly probable Neandertal - human mixes, I imagine that human reaction varied.  Some were expelled, others retained as semi slaves, while others may have been relatively accepted.  It probably depended alot on the individual tribe and how human the mixed individual looked.

Originally posted by opuslola Based upon the above (if it is correct?), I then, rest my case! Concerning, that is, my mention that some science believes that the Neanderthals merely were merged into modern mankind!

It looks like you are right.  And then figure that up to 4% of our DNA is a relatively large amount.  It also looks like human and neandertal mixes were fairly common and that mixed individuals were not sterile.

 

Its kind of ironic, some Europeans accused Africans of not being fully human, yet Africans have 100% human DNA and the Europeans are the ones with measurable amounts non human DNA.

 

There are several factors that haven't been explored yet.  One is the Mt. Toba eruption.  TGS touched on it but didn't realize it.

Geneticists have long known about a "genetic bottleneck".  Indicating a reduction of humans to as few as a thousand individuals worldwide.  It's only been in recent years that knowledge of the eruption has been confirmed.  Toba erupted approx. 70,000 ybp.  That fits in perfectly with the timing on the bottleneck.

The second factor is still being discussed in the science comm.  Scientists in Australia have found a grouping of human remains dated some 40,000 ypb that have no direct connection to any living human.   This is bringing a new theory forward and that is called, "Regional Continuity". 

They have been able to map both the human and Neanderthal DNA using using samples from a neander dated to 35,000 ybp.  I don't know if this is possible, but, I would like to see a sample of both human and neander dna taken from remains dated from before the Toba eruption.

 

If humans were reduced to less than a thousand, I can't imagine Neander. doing much better.  Interbreeding may have been vital to survival of both species.

 

 

 

Who's to say that they weren't civilized?  Toba erupted approx. 77,000 ybp.  In some places the ash deposit reached 30 ft in depth.  It could easily have buried any signs of civilization.  In several locations in Asia and Central Europe they have found "anomalous artifacts", Nano tech. in the form of watch like mechanisms and other advanced forms of manufacture.  They call them "Ooparts", out of place artifacts.  They are commonly found at a level that would date them at +100,000 ybp.

 

If our civilization rose in a mere 10,000 years, whose to say it hasn't happened before? 100,000 years is not even a blink in geologic time.  Aliens? Ets?  Why is it so hard to believe that we could do all of this ourselves, without help from an ET?  The History channel is running a show called Ancient Aliens.  Most, if not all of the examples they show of an advanced tech. being transferred to humans, could have easily existed from an advanced civilization in our past.  Let go of the Bible. Forget 6,000 years.  Skip the human "we are as good as it gets" attitude.  There is much we don't yet know.

 

Med.-  Don't worry about your English grammer. Your doing fine.  English even as a first language is tough enough.  I'm still having trouble with it after 63 years. 

 

 

Hope springs infernal.  Your being a little vague, and based on what you've posted, no, I don't see your point. 

 

I've posted this site 5-6 times in the last 6 mons.  Maybe they will pay attention now that you have posted it.  Not likely, but there's always a chance.