- Alaska Fish and Game: Northern Fur Seal
- Reviews species, name, locations, appearance, breeding grounds in Alaska, size, lifespan, migration, distribution, food habits, and management.
- Alaska Sea Grant: Northern Fur Seal
- Skull animation and distribution map accompany information on characteristics, observed behavior, diet, life cycle, and status and human interaction.
- ARKive.org: Northern Fur Seal (Callorhinus ursinus)
- Lists facts and status, description, range and habitat, biology, threats and conservation, and related species.
- Northern Fur Seal - Callorhinus ursinus
- Classification, source of name, habitat, description, behavior, and reproduction details from America Zoo.
- Northern Fur Seal (Callorhinus ursinus)
- Pictures, classification, geographic range, habitat, physical description, reproduction, longevity, behavior, food habits, and status from Animal Diversity Web.
- Northern Fur Seal (Callorhinus ursinus)
- Distribution, population, status, threats, lifestyle, and statistics from Seal Conservation Society.
- Northern Fur Seal (Callorhinus ursinus)
- Fact file from BBC Nature offers information on lifespan, diet, breeding, life cycle, locations and habitat, behavior, and conservation.
- Northern Fur Seal (Callorhinus ursinus)
- Gallery and details from MarineBio highlight appearance, behavior, where they live, habitat, diet, and life history.
- Northern Fur Seal (Callorhinus ursinus)
- Marine Mammal Center offers description, range and habitat, behavior, mating and breeding, and status.
- Northern Fur Seal, Callorhinus ursinus
- University of Guelph details description, distribution, reproduction, ecology, and behavior.
- Wonder Club: Northern Fur Seal
- Includes habits, breeding, food and hunting, history with man, and key facts.
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