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ARX7 t1_iuzt171 wrote on November 4, 2022 at 5:48 AM

Reply to comment by Practical_Cartoonist in How many children did Homo Erectus tend to have? by [deleted]

With no background, I'd expect it would be due to the nature of non-viable zygotes being 'rejected' so menstruation would need to be more frequent to eventually have a viable zygote.