July 19, 20214 yr 9 hours ago, SteveW said: It is evident that the Moon has influenced the evolution of species but there certainly seems to be no synchrony with the tides. I'll tell you what does impact a women's menstrual cycle... other women. I'm sure you've probably heard this before Steve but when women spend a lot of time together their menstrual cycles synchronise. Not sure what the evolutionary benefit of that is.
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