Monogamy and promiscuity

The President, the First Lady, and a rooster who just couldn’t say no
Deflating the Myth of Monogamy
Monogamous Animals May Be More Likely To Die Out
Straying Is in the Genes, Scientists Say
Promiscuity May Be Key Factor In Immune System Evolution, Study Suggests
Cheating genes play large role in female infidelity
Biology's plans for our love lives
Sex chemistry 'lasts two years'
Woman's scent can lure or repel A woman's body odour can help her attract men when she is at her most fertile and repel them when she is not.
Designer Genes: Women May Stray When Ovulation Peaks
Sex more likely when women are most fertile
Love Trap (25 minute video)
Orgasms play tricks on your mind-brain
Orgasms: a real ‘turn-off’ for women
What's Love Got to Do With It? Everything.
In a new book, a marriage historian says romance wrecked family stability.
Miscellaneous items
Brain Chemicals Involved In Aggression Identified: May Lead To New Treatments Article about brain chemistry of aggression, depression and other behaviors.
Sex and the Secret Nerve (pdf, 5482k) Article about little-known cranial nerves that link to mating centers of brain, and appear to sense pheromones.
Male chimpanzees prefer mating with old females
Fatherhood boosts male brains
Why Marriage Is Good Medicine for Men
Selfish genes make humans selfless, new theory suggests
A molecule of passionate love?
Oxytocin Raises Aggression, Cuts Anxiety During Lactation; Similar Effects On Virgin Rats
Hormone Spray Is Found To Bolster Trust in Others
Impulsive Behavior May Be Relict Of Hunter-gatherer Past
The More Social Sex
Survival of the fittest? Anthropologist suggests the nicest prevail - not just the selfish
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