:) You're not the first person to tell me that. They always tell me they're kidding, but I guess there's some truth to it :) . Please, could you elaborate on y

:) You're not the first person to tell me that. They always tell me they're kidding, but I guess there's some truth to it :) . Please, could you elaborate on your thoughts? When Antu came home we had an open space for him, where he could run somehow freely. Then winter came and we had to bring him inside our apartment. After a while, I built a wheel for him (not the same one as he has now) and he ran like crazy. Now when we put him in the open space he prefers to run on the wheel. I always wonder if he really enjoys it or we just messed him up. It seems that it is the former: http://animals.io9.com/wild-animals-sneak-onto-laboratory-running-wheels-to-ex-1580338742 http://animals.io9.com/wild-animals-sneak-onto-laboratory-ru... http://www.theguardian.com/science/grrlscientist/2014/may/21/wild-mice-exercise-wheels-behaviour-stereotypy-neurosis http://www.theguardian.com/science/grrlscientist/2014/may/21...