baboon sexual swellings Flashcards
who conducted the study
higham in 2009
what are primate sexual swellings
hormone dependent sexual signals that determine mating patterns/advertise ovulation in females
pagels reliable indictaor hypothesis
female swelling size= males select for biggest swelling as its a sign of female fitness
nunns graded signal hypothesis
female swelling size= indicator of ovulation likely in individual’s cycle
what makes baboons special?
biggest sexual swlling in primates
what did higham study
olive baboons + sexual swellings to evaluate whether pagels or nunns hypothesis were correct
what are the two hypothesis about why baboons have sexual swellings
pagels reliable indictaor hypothesis
nunns graded signal hypothesis
conclusion
nunns graded signal hypothesis correct: larger swellellings when female most fertile