01-15-2012, 09:56 AM
It is estimated that all cheetahs alive today are descended from 1 breeding pair at the end of the last ice age
It is estimated that 200k years ago, the evolution of modern man in africa was done by a small tribe of about 2000
It is certain that gene-concentration aided evolution of new species
It is estimated that 85k years ago, the out-of-africa exodus was done by 2k modern humans
It is estimated that 70k years ago, less than 2k humans survived the mount toba volcanic winter
In all these cases what happens is mating between siblings, parent-child happen and even in normal conditions.
due to historic lack of mobility, most humans were marrying their 1st and 2nd cousins.
The gotra system was an improvement over this, but it should be analysed scientifically, not through pseudo-scientific hype
It is estimated that 200k years ago, the evolution of modern man in africa was done by a small tribe of about 2000
It is certain that gene-concentration aided evolution of new species
It is estimated that 85k years ago, the out-of-africa exodus was done by 2k modern humans
It is estimated that 70k years ago, less than 2k humans survived the mount toba volcanic winter
In all these cases what happens is mating between siblings, parent-child happen and even in normal conditions.
due to historic lack of mobility, most humans were marrying their 1st and 2nd cousins.
The gotra system was an improvement over this, but it should be analysed scientifically, not through pseudo-scientific hype