The rides should try to incorporate both as much as they can. (except the thrill rides, basically)
Slow moving people mover types might be good for an arial view of different animal habitats, along with an informative narration, and some catchy music.
Mabey a Jungle Cruise type ride through the rivers of AK, or make its own "private" river. I just can't get over how beautiful those rivers are. The place looks just huge and endless looking out over those bridges, and seeing all those strategically placed waterfalls and stuff.