We've received a lot of search engine traffic over the past few days because of the phenomenon of "black" and "white" fraternal twins (two cases within the last week). Aside from the original post on this blog, I've commented on it a few times at my other blog, here, here and here. Also, some of you might find this 20/20 segment on the original British twins interesting, click on the video. I can't but help wonder if Brazilian readers don't find the commotion a bit amusing...