Yes they do and I don't mind it at all, there isn't a single area of geographical theme placed in a specific area. All the exhibits are placed next to one another. It's one large circle with big cats, red pandas and a bear in the center. It starts out with:
1. Bactrian Camel with Amur Tiger behind it
2. Malayan Tapir with Black Bear behind it
3. Two Black RhinoRhinos
4. Giraffe
5. Center contains indoor pachyderm exhibits on either side
6. The tiger and bear are at the tip (from inside the circle)
7. You can enter the Big Cat Country exhibit with indoor cat exhibits
8. You can come out make a right and see the African Waterhole with Lions/Hyenas behind them
9. African Savanna with Cheetahs behind them
10. Bongos
11. Hippos
12. River Hogs
13. Elephants
14. Loop around to South America and see Jaguars behind them (you can also see the jaguars, lions, cheetahs, and hyenas up close).
I don't know why I explained it this was and it must be epxerienced in person.