Search for: Title Author Subject Series that begins with: 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings > Browse Headings # Ursus americanus -- SEE: Black bear 4 Ursus arctos horribilis -- SEE: Grizzly bear 9 Ursus eogroenlandicus -- SEE: Polar bear. 10 Ursus groenlandicus -- SEE: Polar bear. 10 Ursus horribilis -- SEE: Grizzly bear 9 Ursus jenaensis -- SEE: Polar bear. 10 Ursus labradorensis -- SEE: Polar bear. 10 Ursus marinus -- SEE: Polar bear. 10 Ursus maritimus -- SEE: Polar bear. 10 Ursus melanoleucus -- SEE: Giant panda 12 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings >