I went with several members of my family (including my grandpa and grandma) to a private zoo (more like a nature related theme park) here in Buenos Aires called Temaikèn (supposely "land of life" in I don't know what language).
It was an interesting experience in some aspects. First of all, it's not usual to find a "themed" place here. It's clean, spacious, and has souvenirs shops. It has people in uniforms much like the crocodile hunter walking all over the place. It also has an incredible amount of acrylic used for a proper display of animals in their "natural" enviroment. A good example of this were the suricates' place.

It's say 4x5m, and surrounded by big rock-like concrete (really rock-like) from both sides and back, and in the front a thick big widescreen low wall of acrylic, that allows oneself to look closely at those cute little animals without the annoying metal or rope grids. They also have a nursery with newborn or sick animals also with glass so you can see them while in treatment. Like this young fellow who was taking the guard position and liked my JB camera:

Some other random good moments: A white tiger swimming a meter away form your face, sharks swiming over your head at the entrance of the aquarium's sea section, a downsized sea waves generator, a hippo eating grass while swimming (seen through another huge think acrylic wall), and mainly the two overpriced undersized and tasty ice-creams I ate that afternoon (last one while the sun lowered to offer a warm light and birds flew over the small lake, very classy). Also an underground display of several small mammals' caves (very dark but cool), an a patagonian section where these fellows were resting:

Special note for this gentle guanaco, who approached enough so I could take this great shot with my zippocam, to rub it on my uncle's face (who brought a pro Canon A1 with several lenses, one being a +200mm), so probably he has one of just the eye of the guanaco.