A friend reminds me that there's this too (which makes me wonder about why we insist on sending mercury laden vaccines to the pediatric patients in 3rd world countries in spite of eliminating them (for the most part) for our own pediatric population). especially the bit about population reduction via infertility...
http://news.nationalgeographic.com/news/2010/12/101203-homosexual-birds-mercury-science/ On a different angle entirely, true story, a family friend had the following conversation with her little girl:
Girl: I like helping sick people get better. I want to be a nurse.
Mom: That's nice, dear. But you could be a doctor if you want.
Girl: Girls can be doctors?
Mom: You can be anything you want.
Girl (delighted): Really? Oh, mommy, I want to be a boat!