Depending on the species of monkey, they'd be more suitable for this than a large cat. But of course then we're talking about the slightly better option of two bad ones.
Six years ago there was at least 11 tigers in the zoo. A number decisely too high to allow much greater improvements in their life. I known however that 'beds' with woodchips were installed in all cages and new logs were put in. It seems that these have been removed or never renovated. Obviously, given the size of the cages, tigers offer much more challanges than leopards regarding wellbeing (think love for water and natural substrate).
Obviously was not an ideal solution, yet leopards seem to respond as thought, resting over visitors without any sign of stress. You may also consider that there was an equal size indoor area and free acces through the year, also by night.
Now the Naples zoo has a new owner so we all hope the worst time is over.
