After the knowledge that Subject 3, the rabbit in the Lost Future, shows that the pet parrot we had was Subject 1. But there is no mention of Subject 1. My theory is that the hamster (found not only in Pandora's/Diabolical box, but also the Azran Legacy) is Subject 2, this is due to his speaking that isn't necessarily directed at Luke. Or else it could be the rabbit, but somehow I think it's more likely to be our furry friend. What do you think?