Northern fur seals migrate from the North Pacific Ocean in the winter to the Bering Sea in the summer. Northern fur seal populations occur along the coast of California (down to San Diego), Alaska, Russia, and Japan.
Biogeographic Regions: nearctic (Native ); palearctic (Native ); arctic ocean (Native ); pacific ocean (Native )
- Gentry, R., G. Kooyman. 1986. Fur Seals: Maternal Strategies on Land and at Sea. Princeton: Princeton University Press.
- Mori, J., N. Baba, T. Kubodera. 2001. Squid in the diet of northern fur seals, *Callorhinus ursinus*, caught in the western and central North Pacific Ocean. Fisheries Research, 52: 91-97.
- Nowak, R. 1999. Walker's Mammals of The World, 6th ed.. Baltimore: Johns Hopkins University Press.