Lunar menstrual synchronization

This paper: Knight, Chris; Camilla Power & Ian Watts (1995). "The Human Symbolic Revolution: A Darwinian Account" (PDF). Cambridge Archaeological Journal 5 (1): 75–114. presents this interesting diagram:

to demonstrate how the synchronization of the human menstrual cycle with the lunar cycle led to the development of symbolization and civilization. In fine scientific fashion, the theory led to an hypothesis and a prediction: something arcane about the use of red ochre in imitation of menstrual blood, and where it would be found at Paleolithic sites. The prediction came true, like a wish in a fairy tale, hence the entire anecdote has been printed in the Cambridge Archeological Journal and is a respected scientific concept, and a plausible element in a theory of the relationship between astronomology and early hominid development.

The authors consider themselves "radical archeologists".  They were arrested in England last April for trying to upstage the Royal Wedding with a public orgy.