Quote Originally Posted by swannyuk View Post
Just for my curiosity can I ask why?

Is it because the like to live between rocks and spend most of their time in the under growth?

cheers
You have probably seen it said here that a hiding snake is a happy snake. When a snake has to bask for its warmth it can no hide. This can lead some snakes to decide to stay hidden and be cool instead of getting the heat they need. A Ball Python will much rather be hidden and warm than in the open and warm.