BPS research has another delightful study that confirms something you likely believed already:
When female chimps are nearing ovulation they display red on their bodies. Male chimps respond by masturbating and attempting to mount them. A new study claims we humans have moved on from this, but not a lot. Daniela Kayser's team found that when a lady wears red it prompts men to ask her more intimate questions and to sit closer to her.
Read about the details of the study here. BPS also reports that guys who want to attract women can benefit from wearing red as well. Another recent study (a series of seven experiments) shows that guys in red clothing and who appear in red backgrounds are seen as more powerful and attractive by women research subjects.
P.S. The reference is: Niesta Kayser, D., Elliot, A., and Feltman, R. (2010). Red and romantic behavior in men viewing women. European Journal of Social Psychology DOI: 10.1002/ejsp.757