Ribbon seals are rarely the marine mammal people expect to see — and that’s part of what makes them memorable. They don’t haul out in large coastal groups like sea lions. They don’t gather near busy fjords. They belong to drifting sea ice and open northern water.

Most Alaskans will never see one in the wild.

Identification

Ribbon seals are strikingly patterned and easy to recognize if you’re lucky enough to spot one.

• Color: Dark brown to nearly black body

• Markings: Distinct pale bands wrapping around the neck, shoulders, and hindquarters

• Size: Around 5–6 feet long

• Build: Streamlined, similar in size to harbor seals

Those pale “ribbons” across their body give them their name and make them stand out sharply against sea ice.

Like harbor seals, they lack external ear flaps and move awkwardly on land compared to sea lions.

Where You’ll See Them in Alaska

Ribbon seals are found primarily in:

• Bering Sea

• Chukchi Sea

• Western Alaska coastal waters

• Offshore Arctic ice edges

They are strongly associated with seasonal sea ice and are rarely seen near populated southern coasts.

Sightings are typically from vessels operating in northern waters or by observers in remote western communities.

Seasonal Patterns

• Spring: Often seen resting on sea ice during breeding season

• Summer: Follow retreating ice northward

• Winter: Spend more time in open water within Arctic regions

Unlike large haul-out species, ribbon seals are usually solitary or seen in small numbers.

Their diet includes fish and cephalopods, and they are strong divers capable of navigating cold, deep waters.

Ribbon seals are part of subsistence traditions in western Alaska, though they are not as commonly harvested as walrus or some other marine mammals. As with other Arctic species, their populations are closely monitored due to changing sea ice conditions.

Arctic viewing conditions are harsh and unpredictable. Fog, wind, and shifting ice make sightings rare and weather-dependent. Layered insulation and wind protection are essential for extended time on northern waters. Ribbon seals don’t gather in spectacle. They exist at the edge of visibility — shaped by ice and distance, part of Alaska’s quieter marine world.