Human Behavior

Question 1

Why Human Monogamy?

Answer 1

large brain/culture
need 18 months of gestation to equal primate development which can’t happen so we birth helpless young that need parental care
female need male helper
concealed ovulation to make males stay around for constant mating
act of sex takes longer which reinforces pair bonds

Question 2

Female Mate Choice

Answer 2

wealth (and parental care)

Question 3

wealth and sex

Answer 3

wealthy men are more likely to cheat and convince females to enter into polygynous relationships

Question 4

Symmetry matters when…

Answer 4

women are ovulating

Question 5

female mate choice influences male traits

Answer 5

runaway selections
Tutsi Tribe - all super tall and skinny (lek formation - jump)
Mbuti Pygmies - large butts so are short

Question 6

Male Mate Choice

Answer 6

Fertility and Appearance (hourglass shape)

Question 7

Ratio of .7

Answer 7

waste to hip

Question 8

Handicap Hypothesis

Answer 8

the more difficult thing to get is the best indicator of a good mate (skinny in US, fat in Africa)

Question 9

Sociobiology book

Answer 9

E.O. Wilson

Question 10

• parents of the groom would be expected to pay the parents of the bride to induce a marriage
• sons would be expected to inherit the bulk of the parent’s estate

Answer 10

Polygynous