I've owned many tegus and monitors over the years. I now dedicate my collection to ball pythons, but was thinking of getting back into tegus and monitors ( I currently own a Savannah monitor that is about 3 ft.). Anyways, I was wondering whats the difference between a golden tegu and a black and white tegu? From what I understand, the goldens are from Columbia and the B&W are from Argentina (please correct me if I'm wrong). I've owned many golds, but never a B&W. I know the gold's are very aggressive but can be tamed (kinda remind me of Niles in the monitor side) and I've heard that B&W are rather more tame (and I know they are wild animals and can't exactly be "tamed", but you guys know what i mean by tamed. lol) And also, are the black and white tegus the ones that have a little green on the head when they are baby's?

Thanks in advance for your responses. I will have A LOT more questions as this goes. lol.