Study claims humans almost extinct 70,000 years ago, with only 2,000 people left in the world

The research group of "Genographic Project" issued a research report on the 24th day, estimating that in 70 thousand years ago, the global population might have dropped to as low as 2000 people, and did not begin to rise again until the early days of the Stone Age, thereby stepping out of the verge of extinction.