This is actually a neat, slightly hidden gem right off of freedom park. $8 to get in (everyone over 2 pays the same price) or it part of the discovery place if you have a membership. It has a lot of local to Mecklenburg "wildlife", which is a lot of turtles and snakes, but there are also some flying squirrels, skunks, and a hedgehog. There's also a fun outdoor explore/play area. It's definitely geared to young children/elementary age, but a nice place to spend a few hours (then you can picnic in the park).