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Animals Up-Close

Encounters with the animals that call Mystic Aquarium home

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All animals
Callorhinus ursinus

Northern Fur Seals


Males: up to 7 feet and 600 lbs. Females: up to 5 feet and 140 lbs.


A wide array or fish and squid: Pacific herring, Atka mackeral, Pacific salmon, Pacific sandlace and squid


Open ocean and rocky beaches for resting, molting and reproduction


Eastern North Pacific Ocean, Bering Sea, Pribilof islands, Okhotsk Seas

Conservation Status


Least Concern


Near Threatened








Extinct in Wild



Northern fur seals have the second densest coat of any animal with 300,000 hairs per square inch.

Mystic Aquarium’s Northern fur seal species ambassadors are helping National Oceanic and Atmospheric Administration (NOAA) to develop a new approach for conducting northern fur seal abundance surveys with unmanned aircraft systems (UAS).

According to the International Union for Conservation of Nature (IUCN) Red List of Threatened Species, Northern fur seals are classified as Vulnerable. Mystic Aquarium is proud to be one of only three facilities to care for Northern fur seals in the United States; providing a home for a colony of fur seals, each with its own unique rescue and rehabilitation story. 

Northern Fur Seal Quick Facts

Threats in the wild

Human interaction injuries like illegal hunting, entanglement, oil spills, pollution and habitat loss.


Northern fur seals feed mostly at night using shallow dives to search for food but can dive to over 800 feet searching for a variety of schooling fish and squid.


Male northern fur seals can reach maximum lengths of 6 feet 11inches and almost 600 pounds while females are slightly smaller with a maximum length 4 feet 11 inches and 130 pounds.