the cat that thinks it's a dog

what a weird morning. at about 5:30 or 6 this morning we were awoken by the insane meowing of the cat across the way. now, i've heard this cat before...sometimes another cat gets involved and there's a bit of a scuffle (which did, indeed, happen)...but it had yet to happen since tarzan entered my life and apartment. i have no idea if this is normal, but tarzan's reaction to all of the commotion was not to meow but to growl. i've heard him do this before, but i just thought it was kind of like a purr. this was definitely growling. you know, the type of growl a dog does right before she barks. of course tarzan can't bark or anything since he doesn't even have the right kind of vocal chords or whatever...but there he was, walking all over us on the bed, looking out the window, growling. it was nuts! i kept waiting for him to bark...so weird. do other cats do this, or does tarzan think he's a dog??? food for thought...