The brown bear does not belong to the family Ursidae.
The brown bear -LRB- Ursus arctos -RRB- is a large bear with the widest distribution of any living ursid .	Ursus	Ursus (genus)	bear	bear
Ursus is a genus in the family Ursidae -LRB- bears -RRB- that includes the widely distributed brown bears , the polar bear , and black bears .	polar bear	polar bear	genus	genus	Ursidae	Ursidae	bear	bear
