SCIENCE IN THE NEWS DAILY
Sex Roles Lose Their Universal Appeal
from Science News
Chuck that nonsense about "men are from Mars, women are from Venus." Here on Earth, the sexes play the mating game with a flexible set of rules. A new study suggests that scientists should abandon the idea that males evolved to be promiscuous and females to be selective.
Combined data from 18 modern and traditional societies show greater overall variation in reproductive success for men than for women -- with some men producing lots of children with multiple partners and other men conceiving few or no children, say psychologist Gillian Brown of the University of St. Andrews in Fife, Scotland, and her colleagues.
In the past, researchers have treated this pattern as a sign of universal mating tendencies, with women limiting how many children they bear and men conceiving as many children as possible.
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