News on the BBC this lunchtime, that a woman's smell can help her attract men when she's most fertile, according to a report in Ethology. It appears that underarm odour is governed by the menstrual cycle, the smell being mildest at the most fertile part of the menstrual cycle. The news continues, explaining how, having run the same experiment on men's smell, the women picked out the "dominant" men during the same period, but didn't seem to have any preference during the rest of the month.
This follows up the story I remember catching late last year, about the research that suggested Women with high levels of the sex hormone oestrogen have prettier faces.
What's interesting with this latest study is it flies against the theories currently in place, whereby this behaviour was well understood in our primate relatives, but not believed to be true for us humans.
Brings a whole new meaning to the comment, "Owh, you smell gorgeous tonite, petal" 
