When it was originally opened, the Park had a monorail which took you around the majority of the park and you got a great view of the animals. This is now being "renovated", and a substitute tram "a la Universal Studios" provides an different type of experience. It gets you a lot closer to some of the animals, but others (such as the tigers - see later) can only be reached by foot.
Notice that all the trees have been trimmed to the same height by the giraffes.