The polar bear (Ursus maritimus) is a carnivorous bear whose native range lies largely within the Arctic Circle, encompassing the Arctic Ocean, its surrounding seas and surrounding land masses.
- Original Name: "Белый медведь"
- Series: Fauna of USSR
- Country: USSR
- Year: 1977-12-16
- Subject: Animals
- Face value: 16 kop
- Number of catalogue Michel: SU 4683
- Perforating: comb 11½ x 12
- Printing: Photogravure and Recess
- Size: 52 x 37 mm