I'll be honest, most of my info comes from farmland/grassland field work in countries we most directly deal with. Most of which have trapped and captured many of the animals used to farm ball pythons with. However, it's interesting to note there are many regions of west Africa where the ball python is actually considered invasive... Many farmers used them to eat rodents and have since thrived. I'd say I was wrong to say ball pythons don't climb period, as we all know they do and will go wherever they need to in order to survive, whether to feed or be comfortable. I still stand by my first statement that it is definitely out of the norm, and would suggest to a keeper to check their husbandry.