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A Y-chromosome bottleneck actually suggest a limited number of males controlled reproduction not females.
by danieltillett 10y ago
A Y-chromosome bottleneck actually suggest a limited number of males controlled reproduction not females.
- madaxe_again 10y agoLimited number, but not necessarily controlled, and the bottleneck could be symptomatic of a change in control. You are absolutely right however that it plays both ways - we don't actually yet know enough - but something happened.
- danieltillett 10y agoWe have evidence from other mammals and all other cases a strong Y-chromosome bottleneck is the result of harem male behaviour. If I had to bet I would say the bottleneck was driven by powerful males monopolising females, not females all choosing a small number of males.