I'm also very interested in this thread. From experience, I haven't really had all that much time to sense any form of intelligence from my snake. As much as I'd love to have a smart snake, he seems to have the intelligence of a toddler. Exploring things, getting stuck in small spaces and such, but never doing anything inherently "smart" as far as I can tell. Sure he moves his hide around a bit on the hot side, as well as using his body to block out any light entering his hide. But nothing I'd consider intelligent.