Family Ursidae - Bears (1 marine species in 1 genus)
There are 7 species of bears in the world and 6 are wholly terrestrial. Bears are very familar animals to many people. In particular, the grizzly, brown, and black bears of the Northern Hemisphere are often exhibited in zoos and are well-known. The single marine species, the polar bear, qualifies as the least aquatic of all marine mammals.
Genus Ursus containing 1 marine species:
Ursus maritimus (Polar bear).