Property damage, and other causes are created everyday from some creatures. Now the wolf was a bounted animal for years and hunted in some areas near distinction levels. Thus wildlife managements soon realized what was happening. Rodents and other creatures that the wolf kept under control were running in greater numbers and the wolf transporting became necessary. The animal chain is a thing that only the animals can control.
Human intervention can be most destructive, at times.
Yellowstone National Park is a good example of this. The wolf was reintroduced there from Canada northlands. Hunting and trapping can also keep other animals in control even though we may disagree with it. We must also take into consideration that young people will be visiting these site links for school projects and such. They do not need to see this kind of graphic material.