Additional information: Requires more complete list of rampaging animals, and a little more general information.
Rampaging is an animal behavior in Zoo Tycoon 2. It occurs when an animal becomes enraged, usually one of powerful and/or large status. During this mode, the animal will destroy foliage, fences, and almost anything else in it's way. How quickly and how often the animal will rampage varies upon species. Some may rampage when happy as well, but this is often regarded as a glitch, as an animal will usually only rampage when their habitat is not suitable, such as if they were placed in a biome which they are not compatible with or are without food.
When an animal rampages, the player can enter a first-person shooter mode, which allows them to shoot the animal with a dart, thus putting them to sleep and crating them, stopping the rampage.