First of all, I've read some caresheets that say monitors and tegus don't need a uvb light if you give them a calcium and D3 supplement, is this true? And this probably sounds weird, but for some reason I find males with big jowls grotesque looking. Is the jowl size random, or is it effected by how much fat the tegu has? I'm not talking about starving it or anything, but would keeping it a little on the slim side keep the jowls smaller? I'm thinking about just getting a female, but I've heard that its better to keep a male as a pet because males tend to be somewhat calmer than females and because females can become eggbound. Is this true? And how likely is it that a tegu will try to hibernate? Is there any way you can keep it from hibernating? I'm not sure I want a pet that I can't do anything with for half the year.