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Gyna Sapiens. September 2 nd , 2010. Women are from Venus, Men are from Mars?. Humans have the mental capacity to adapt to changing environmental conditions. Reasons for Concealed Ovulation. Other female primates announce ovulation through call, smell, sight, touch, and/or gesture

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Gyna sapiens

Gyna Sapiens

September 2nd, 2010


Women are from venus men are from mars
Women are from Venus, Men are from Mars?

  • Humans have the mental capacity to adapt to changing environmental conditions


Reasons for concealed ovulation
Reasons for Concealed Ovulation

  • Other female primates announce ovulation through call, smell, sight, touch, and/or gesture

  • “Daddy-at-Home” theory

  • Selection pressures theory

  • Many fathers theory

  • Symons theory


Big hungry brains
Big, Hungry Brains!

  • Another reason for concealed ovulation

  • Homo erectus vs Homo sapiens

  • Human brain represents 3% of body weight, but requires 25% of the blood

  • Increase in human brain size: neocortex and frontal lobes & specialized hemispheres


Synchronized menses
Synchronized Menses

  • When the male is disproportionately larger than the female, males dominate the females

    • Silverback gorillas and hamadryas baboons


Synchronized menses1
Synchronized Menses

  • Most other creatures synchronize ovulation through circadian rhythm to create mass breeding seasons timed to coincide with optimal environmental conditions

  • A close-knit group of women can synchronize their menses

  • Why?


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