Mammals
Ribbon Seal
Histriophoca fasciata · also called ribbon seals
Resting alone on a drifting ice floe in the Bering Sea, a ribbon seal’s bold bands of pale colour stand out sharply against its dark body, one of the most strikingly patterned seals in the world, spending its life scattered across the ice rather than gathered in crowded colonies.
Overview
The ribbon seal, Histriophoca fasciata, is a strikingly patterned seal native to ice-covered waters across the North Pacific and adjacent Arctic Ocean, including the Bering Sea and Sea of Okhotsk. Its bold banded colouration, largely solitary lifestyle spread across drifting sea ice, and strong swimming ability in open water make it one of the more visually distinctive and behaviourally independent seal species found in the North Pacific.
A pattern built for standing out, not blending in
Unlike many seals that rely on mottled camouflage to disappear against ice and rock, the ribbon seal instead wears one of the boldest, most visually striking patterns of any pinniped, standing out clearly against the pale ice it calls home.
Status
Least Concern, widespread and stable across suitable ice-covered habitat throughout the North Pacific and adjacent Arctic Ocean.
Ribbon Seal: common questions
Why is the ribbon seal so distinctively coloured?
This species displays striking continuous bands of pale colour wrapped around an otherwise dark body, one of the most visually distinctive colour patterns found in any seal species, with the banding typically more vivid and sharply defined in males compared with females.
Does the ribbon seal live in large colonies?
No, this species spends much of its life scattered individually across drifting sea ice rather than forming the dense breeding colonies seen in some other seal species, favouring a more solitary existence spread across suitable ice habitat.
How much time does the ribbon seal spend in open water?
This species is a capable swimmer that spends considerable time foraging in open water away from ice, a somewhat more pelagic lifestyle than some other Arctic seal species that remain more closely tied to the ice itself throughout the year.
Why is the ribbon seal considered sensitive to climate change?
This species depends on stable seasonal sea ice for resting, moulting, and raising pups, making it sensitive to changes in ice timing and extent linked to shifting Arctic and North Pacific conditions, a vulnerability shared with several other ice-dependent seal species.