Over time, it is the size of the skull particulary that of the jaw bones, that can help determine the evolutionary relationship of two hominid species. It was believed that the jaws of hominids change as time passes by because the size of the brains changes too.
Wolves can also increase tourism.... Wolves were introduced for habitat conservation at Coronation Island, Alaska in 1960, and there they successfully managed deer before the wolf population expanded and then crashed.