And it's thought maybe it was a genetic bottleneck, thought to have been 12,000 years ago, and this has caused a very low diversity.
ويُتقد ان ذلك عنق زجاجة , عُنق زجاجة جيني يعتقد انه حدث منذ 12000 سنة مضت وتسبب في انخفاض التنوع