How possible is it, that Caucasoids or Mongoloids mutated successfully as albino-like tribes, while in Africa.

Question

...and then, migrated on foot to different regions of Eur-asia, before thriving and multiplying locally?

Taking this idea one step further, what if H. Idaltu, H. erectus, and/or H. sapiens, inter-mingled while still in Africa, splitting apart there, before giving rise to the various unique ethnicities, and then traveling abroad, within the past 200,000 years or more?

That would embrace, both the "Out of Africa" and "Regional Development through Natural Selection" theories that Anthropologists have proposed...

Answer 1

I find that the theory of humans changing from dark skinned people to either darker skinned or white and yellow impossible to believe.

Another factor is those that have the blackest of black skinned people are found in India and Africa, and perhaps else where are living alongside people with considerably lighter skin colours.

Answer 2

Not very. Skin color is a response to local environments.

Answer 3

Um yeah, but it might have been aliens...

Answer 4

Hey this is different.  The white people were already white mutants before they high-tailed it out of the Dark Continent on tourist visas to the colder climes way back when????  Wow the white masses were once albinos - Yeah I reckon we could live with that and they had to high tail it out of Africa cause the dark normal people had more brains and better physical attributes and so threatened the poor albinos.

Answer 5

I believe that according to the "weak garden of eden hypothesis", humans did split into proto-European, proto-Asian, and proto-African populations. However, the strong phenotypic distinctions did not increase in variation and become selected until they moved into their respective environments.

That is: the light skin traits were somewhat present in the African and Asian populations, but were only selected for humans occupying cold inland regions like Europe.

Answer 6

Maybe they were considered as outcasts because of their light skin and then they migrated to the other parts of the world.

Answer 7

Wow.  That was one of the most rediculous ideas I've ever heard.  None of that made any sense.  Where to start?

a) Albinism is recessive, would be detrimental to the organism and therefore lessen chances of survival and offspring, and that would mean "caucasoids" or "mongoloids" would all have freakin pink eyes and no pigmentation!  I have blue eyes and freckles!

b) How do you propose these species "intermingled" into one species and then split apart into different ethnicities while still in the same area?  By one tribe sitting in the shade?  Doesn't work like that.

"What you’ve just said... is one of the most insanely idiotic things I have ever heard. At no point in your rambling, incoherent response were you even close to anything that could be considered a rational thought. Everyone in this room is now dumber for having listened to it. I award you no points, and may God have mercy on your soul"

Answer 8

Clearly the multi-regionalists were wrong in that humans did not evolve from later H. erectus or Neanderthals.  I also don't agree with the out of Africa theory.  I think they may very well have moved out of Africa but there was not a one way door where they couldn't move back.  Fossil evidence shows tools and possible ancestors in Asia for over a million years, far before H. sapiens.  The scant fossil record cannot be used to suggest that the out of Africa theory is correct in my opinion. Since they migrated out of Africa, if true, they migrated back and forth in all directions as people have always done.  I am skeptical of any "branch" being permanently in one area.

Answer 9

Peternal, whille anything is "possible" due to mutations that crop up in the human genome but, I see no advantage offered by a lighter skin in a semi tropical environment.  As we both know, in order to have positive gene selection the gene must offer some reproductive or survival advantage.  

Our limited knowledge of the neandertal & erectus genome has led to a temporary stalemate on regional vs out of Africa arguements. As we both know, a large % of our genes are contributed by ancestors who leave no Y or Mt markers in the long run.

Reverse engineering of bacteria found in neandertal fossiles is proceding on schedual & should produce a draft of the full genome within 2 yrs.  We can only hope someone finds an erectus fossile that can provide some DNA answers.  Undoubtably the erectus experienced more rapid evolution outside Africa than in Africa & the brain sizes of those found in Asia come close to sapien size.

Edit:

Mungo man may well be an erectus that evolved into sapien... since the MtDNA is not from the African mitrochondrial Eve of  some 140,000 yrs ago.

Answer 10

I believe in the idea, that there were different earth ages. The first earth age(before Adam and Eve) the land masses were still connected. Maby, just maby, the colors of different races were here then.