the studie ....
the human intelligent is depending on 2000 to 5000 genes
this hereditary material is susceptible for mutations
http://www.tgdaily.com/general-scien...ss-intelligent
still the humans will need it to survive in the 7 billion humans they live with these day
the beginning agriculture days humans were with less then 1 billion
this already gave communication problems living with the group that is spread over large terretory
towards later world wide on all continents
and in this spreading movement the genepools formed
as you see on the outside, japanees are different then europeans
japanees who are still today in thier genepool with 98% japanees people
chinees look different
africans , latin
then the mix of world wide people
what you don't have to forget to see with humans is that they have information who creates a genepool on the information they use
so this information is religion
jewish people make childeren with jewish people
muslim people make childeren with muslim people
christian people ...
boudist ....
jehova withness ...
^^ this genepool formation is NOT NATURAL
what birth is then natural?
well look at the world what humans made of it
the humans don't even know if they are real or fictional creatures anymore
soo much information pollution is disturbed their natural life
what birth is natural?
the birth that stops when the limit of humans is reached
the natural limit of a balance with the foodchain that is available