I've heard that kind of thing anecdotally, and it's a reasonable theory, but I've never seen any formal research on it.
Now I let a bit of sunlight into the room where I keep my one amel during the day (my tank isn't in front of the window where it will raise the temperature a lot, just across the room so he gets some ambient light).
So where does cerastes cerastes fit in with your theory? And Morelia Bredli ....Oh and Morelia boeleni come to that?The definition of basking reptiles is key, a basking reptile in that context is a reptile that must bask to digest its food. Most (but not all) species of lizards, I believe all species of turtles, I believe all species of crocs (but I'm really not sure about that one), but AFAIK no snake requires basking to properly process the nutrients in their food, even though they do sometimes bask.
So where does cerastes cerastes fit in with your theory? And Morelia Bredli ....Oh and Morelia boeleni come to that?