I have never purchased a tegu from anyone.
All of my Tegus were captured from the free-ranging group in southern
Dade County, Florida. My pictures are never digitally enhanced for
color or contrast. If you are familar with Tupinambis merianae patterns
and contrasts, you will recogonize characteristics currentry marketed
by a few captive breeders as Chacocan, Extreme Giant, and now
Giant Chacoan. They are simply marketing tools to increase the sale
price of Argentine Black-and-Whites as seen here.