Varanus Albigularis (white-throated monitor), V.Microstictus (true blackthroat), are a large species of monitor that range from 4 ft to 7 ft long and 15-53 lbs (sounds really obese to me). They have the potential if given the tools to grow to those sizes, they are very very powerful animals. As with any monitor they are extremely intelligent and have individual personalities, therefore you may have a friendly animal or an unapproachable, unhandleable, dangerous, monitor. Either way if you choose to take the responsibility for the animal you need to be prepared to keep whichever yours turns into for a long long time (17-30 years?), too many buy these animals with the idea its cool and they arent in it for the long haul, of course most dont live more than a year or so in captivity (most monitors actually). They can be friendly or not but either way its a lot of time patience and work. Warning the bite of an albig at almost any size is bad, especially as they get bigger, its like a bench vice with teeth, and they dont let go until they are ready all the while chewing, and tightening. After all these are animals that crush turtle, tortoise, and giant land snail shells for food. They eat ALOT!!! period, they are eating machines, never try to compare a bosc monitor and its appetite to an Albig. Ive had a few over 13 years, and they are interesting captives but require alot of space, and food. I cant put Sobek in anything bigger than 4x4x8ft now, but I need to get her into a 10x6x5ft cage as soon as I can. If this hasnt scred you off then I hope you have good luck.