Lap Dancers 'On Heat' and Shaghappy She-Kiwis

From NewScientist:

'Geoffrey Miller and his team at the University of New Mexico, Albuquerque, compared the earnings of lap dancers who were menstruating naturally with those of dancers taking the hormonal contraceptive pill. During the non-fertile periods of their menstrual cycle, both sets of dancers earned similar tips. But when naturally cycling lap dancers entered their fertile period they earned significantly more in tips than their co-workers on the pill'

And this from SMH:

'New Zealand women have the most sexual partners in the world, according to a global sex survey reported on Saturday. They have an average of 20.4 sexual partners, according to a survey by condom-maker Durex - well above the global average of 7.3. New Zealand was the only country where women were more promiscuous than their men, who averaged 16.8 sexual partners.'