Women riding scooters on Lahore's roads have become an increasingly visible part of the city's workforce and economic activity, but growing incidents of harassment, road aggression and traffic-related ...

Human men are typically more aggressive than human women, a finding supported by reams of research. But surveys of 4,136 individuals in 24 countries reveal an exception to the trend: aggression in ...

Among primates, female-on-female aggression is quite common and indeed there is no consistent cross-species sex difference in the frequency of aggressive encounters. In some species, females are ...

When it comes to competition and conflict, men seem to get the lion’s share of the credit. In Darwin’s 1871 landmark publication on sex differences, he focused on male-male competition for mates and ...