Linked here from rm. Great great story! :) My favourite part that totally made me laff was this:

(As a side note, the bacteria in his vomit found a happy home in the warm, amino-acid-rich slime that covered the planet. In the fullness of time, their descendants evolved, and grew into a complex, peaceful civilization, albeit one in which copulation held the same place that a handshake does in human rituals. So it goes.)

Hahahaha! An entire race based on Jacks DNA? Awesome!

Thanks so much for sharing!