Heh I was actually thinking about the same study when I replied! I will fully admit my opinions are purely based on observations and readings, so I have yet to witness first hand experience myself. But overall I think we are in general agreement!
I think the key thing is, if they were arboreal then climbing and vertical space would be a necessity for them to thrive. Since BP's are not, they definitely don't NEED it and can do just fine without it, but would be a nice option that some bp's (males being more likely) may appreciate or at the very least use voluntarily. Providing the set up is secure and making sure husbandry is on point first of course.
Anyways sorry for getting off topic StarScream! We love your little girl!
Very well said, and starscream we are very sorry for hijacking your thread. At least I stopped talking about horses.