What causes people to be bisexual?

BedHead
Tue, 10 Apr 2007 10:12:09 +0000

It’s all in the genes…

http://www.nytimes.com/2007/04/10/health/10gene.html?_r=1&adxnnl=1&oref=slogin&adxnnlx=1176214197-GjET2EusvsDBM6ccY9xy3w