08a sex & copulation

08a sex & copulation - Sexual Behavior olfactory...

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Sexual Behavior olfactory & gustatory investigation
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Sexual Behavior flehmen or lip  curl
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Sexual Behavior Precopulatory Search for sexual partner - all senses Courtship – species specific events Sexual arousal Erection Copulatory Mounting Intromission Ejaculation Postcopulatory Dismount Refractory period (PEI) Memory
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Mechanism of Sexual Selection Darwin, C. (1871) The Descent of Man,  Or she may accept, as appearances would sometimes  lead us to believe, not the male which is the most  attractive to her, but the one which is the least  distasteful.” “…the  female , though comparatively  passive generally exerts some  choice  and accepts  one male  in  preference to others…  
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1. Males gain RS by mating with more females. Females do not gain RS by mating multiply. 2. Males vary more than females in the number of their 
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08a sex & copulation - Sexual Behavior olfactory...

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