Here are a few pics, hope this helps. The first pic is a regular boa. The second is a Hog Island Boa, and last is a pic of a Hog Island crossed with a red tail boa. And yes the Hog Islands boa as well as a few other boas change color when the heat up and cool down. I think it is to absorb more light energy but im not an expert on the process in which they use to do this but its cool to watch.


red tail boa

hog island boa

hog island red tail cross