Echosdance - The most effictive way to get customer happiness up is for them to see animals anywhere the walk, this will also help with the zoo rating. Another tip for zoo rating is to have your exhibits have a high suitability rating (you can find the suitability rating by clicking on one of your animals and it's the green bar at the bottom). If you suitability is less than 90%, try changing things in your exhibits. Also, if you want to find out how to get 100% suitability for all animals, check out Wisco's site, it tells you how much foilage, rocks, etc. you need for each animal :wtg