The Hog Island Boas have seen an increase in popularity in recent years. They are a very beautiful boa, being a naturally occuring hypomelanistic. An even more interesting aspect of their physiology is their ability to shift colors from day to night. At night their color lightens and some specimens become almost white on the anterior portion of their body, particularly the head and neck. The rest of the body takes on a lighter hue as well and their normal orange tail saddles are further highlighted.