But Vulcans and Romulans are not human, or derived from the Preservers, or others of such nature. According to the book called, "Spock's World," they decended from plant and tree forms of their planet. Now, I know that may have been forgotten and not new cannon, but I always thot that made for an interesting history. And a good place to explain why green blood can still contain chloraphyl (probably misspelled), and not be processed by sunlight.<br /><br />But according to your post, there are two different cannons, which would make an even more interesting explaination for green blood, and the science behind it. And remember the Romulans are distance cousins to the Vulcans. I just picked up a book 2 that explains the relationship between these two peoples. The book series is Vulcan's Soul, and book two is Exile, the looking for a new home world for all the Vulcans that fled Vulcan so they would not have to give up their passion and warlike spirit. Book one was interesting, especially on book tape.<br /><br />But personally, I still hold out for the dark side of the planet for an explaination of the dark Vulcans, or maybe they ARE related somehow to earth's black Irish. <br />Who knows? <br /><br /><br />