fist off, i have to admit, that my pit experiance isn't the best I've read about the northern pine snakes and there husbandry, but i already had tubs set up so i got them. so my first ?? bulls and pines are rear fanged snakes right, the breeder said yes, but i googled bull snakes and got dif answers. second i know they rattle but when miy bull does he opens his mouth and makes a diferant hissing sound then try to strikes. does he open his mouth ready to strike or has to open his mouth to make that hissing sound, my bps and corn, hiss with no open mouth