The brown bear is a river.
The brown bear ( Ursus arctos ) is a large bear with the widest distribution of any living ursid . As of 2012 , this and the American black bear are the only bear species not classified as threatened by the IUCN . The Marsican brown bear , one of several currently isolated populations of the main Eurasian brown bear race , in central Italy is believed to have a population of just 30 to 40 bears .