VUVulnerablePartial review

Polar Bear

Ursus maritimus

Polar bear (Ursus maritimus) on drift ice north of Svalbard.

Polar bear (Ursus maritimus) on Arctic sea ice.

Image: Andreas Weith, CC BY-SA 4.0, via Wikimedia Commons.

At a glance

IUCN category
VU · Vulnerable
Animal group
Mammals
Population trend
Trend unknown
Last verified

Conservation overview

The polar bear is the largest living land carnivore — a marine mammal that hunts seals from Arctic sea ice. It is assessed as Vulnerable.

It depends on sea ice to hunt, so the timing and extent of ice strongly shape where and how well polar bears can feed.

Range & habitat

Circumpolar across the Arctic sea ice of Canada, the United States (Alaska), Russia, Greenland, and Norway.

Major threats

Threats below are drawn from the authoritative sources listed on this page. For the current, complete assessment, see the IUCN Red List.

  • Loss of sea-ice habitat linked to a warming climate
  • Pollution
  • Disturbance from industrial activity

Why it matters

The polar bear sits at the top of the Arctic food web and has become a widely recognised indicator of change in that environment.

Polar bear standing on snow and ice.

A polar bear — Vulnerable, and dependent on sea ice.

Image: Arturo de Frias Marques, CC BY-SA 4.0, via Wikimedia Commons.

Sources

Sources for Polar Bear

Frequently Asked Questions

Why is the polar bear Vulnerable?
Published assessments link its outlook to the loss of the sea-ice habitat it depends on for hunting. For the current assessment, see the IUCN Red List.
Are polar bears marine mammals?
Yes. They are classified as marine mammals because they depend on the sea-ice environment and hunt marine prey.

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