Another nice zoo offering in Arizona, with the addition of an aquarium. (I find it odd there isn't an aquarium in downtown Phoenix though.)
Anyway, we started on the zoo side and saw many cool animals who seemed to spend most of the day lounging around or playing with habitat mates. They have many birds, reptiles, and even a baby animal nursery. Animals are diverse and worth spending the first half of your day with before you head over to the aquarium. Be sure to check out the albino wallaby! (Interesting to see an albino in the always constant Arizona sun.)
If you are feeling adventurous, head over to the hands on exhibits where you can run your hands along the back of a stingray, or pick up starfish.
All in all, a great zoo/aquarium and though it's a little more expensive, it's worth the money. Use your entertainment book for the valuable two for one coupon!