I saw The Bodies Exhibit in Manhattan quite a few months ago. It's been in Seattle for a little less than a month over at 800 Pike. If you haven't seen it, I highly recommend it. While in the reproduction portion of the exhibit I overheard some parents taking advantage of the situation and teaching their pre-teens about the birds and the bees. While I can imagine a public discussion like this was awkward, it left little to the imagination and was probably easy for the parents as they simply pointed and explained.

Kate