I'm, once again, having trouble with this hack.
The description says that virtually all animals can be mixed together and stay happy. Fine, so I created a huge mixed Dinosaur exhibit. And yet, slowly but surely, the Styracosaurus got more and more unhappy until the dreaded "Styracosaurus 3 is not happy" popped up out of nowhere. Several other dinosaurs were becoming peeved as well, and I thought the hack wasn't supposed to do that.
This isn't my first problem with it either. When I first got it, I tried creating a mixed savannah exhibit with every savannah animal...but STILL the hyenas got more and more unhappy until they were fuming...as did the baboons, and the cheetahs, and the giraffes I believe.
Am I doing something wrong?