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satireplusplus t1_ja9vh89 wrote

It's not the same, but somewhat similar. While they were not entirely sterile, it's likely that 1st generation neanderthal+sapiens had trouble making (male) babies as well:

https://www.smithsonianmag.com/smart-news/humans-and-neanderthals-may-have-had-trouble-making-male-babies-180958701/

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