How wolves have--and haven't--transformed Yellowstone.

Authors :: Morell, Virginia
Source :: Science Now. 3/19/2015, p6-6. 1p.
Publication Year :: 2015
Abstract: The article offers an explanation on how Yellowstone National Park was and was not changed by wolves. In 1995 biologists at Yellowstone set radio collars on six wolves and observed them. As of March 2015, there are a total of 95 wolves in 11 packs, hunting elk, deer and bison. It notes that scientists are cautious on attributing the changes in the park solely to the wolves.