Watch a polar bear walk away across the ice and look at its rear end. All you see is thick, creamy fur. Hidden in there is something many people never notice.
Yes, polar bears have tails. The tail is just very short: 7 to 12 cm (3 to 5 in) long in both males and females, says the San Diego Zoo Wildlife Alliance fact sheet. It is so small and furry that it almost disappears into the bear’s coat. Being short helps the bear lose less heat.
Key takeaways
- Yes, they have tails: about 7–12 cm (3–5 in) long.
- Why so short: a short, compact tail helps prevent heat loss, says Polar Bears International.
- Hard to spot: the tail is tiny next to a body that is 1.9–2.6 m long.
How long is a polar bear’s tail?
A polar bear’s tail is 7 to 12 cm (3 to 5 in) long, according to the San Diego Zoo Wildlife Alliance fact sheet, and it is the same size in males and females. Compared with the bear’s body, it is tiny: adult males are 240 to 260 cm long and females 190 to 210 cm.
Picture it: tail vs body
A male polar bear’s body length and tail drawn to the same scale.
Body of an adult male: 240–260 cm
Tail: 7–12 cm
Source: San Diego Zoo Wildlife Alliance fact sheet. The tail is less than one twentieth of the body length.
Why do polar bears have such short tails?
To save heat. Polar Bears International says polar bears have small, round ears and short, compact tails to prevent heat loss. Body parts that stick out lose warmth quickly, and Arctic winters can plunge to −40 °C or colder. A long tail would be a weak spot in the cold.
Researchers have not published a study on exactly how the tail evolved to be short, so treat this as the best-supported explanation rather than a tested result. See more in polar bear adaptations.
Do other bears have short tails too?
Yes. All bears have short tails. Brown bears, including grizzlies, have tails 6 to 20 cm (2 to 8 in) long, says the San Diego Zoo brown bear fact sheet. So a polar bear’s tail sits inside the brown bear range. Read about the whole family in do bears have tails?
What does a polar bear do with its tail?
As far as we know, not much. Unlike a cat or a monkey, a polar bear is not known to use its tail for balance or signals, and we could not find any study describing a special use. Its main job seems to be staying small and warm. The tail is covered with the same thick fur as the rest of the body.
How does the polar bear fit into its ecosystem?
Polar bears are a top carnivore of the Arctic, says Animal Diversity Web. They hunt mainly ringed and bearded seals (Polar Bears International). The seal remains they leave behind feed younger bears and Arctic foxes. Every heat-saving feature, the tiny tail included, helps the bear keep this role in a frozen world.
Myths about polar bear tails
Myth: Polar bears have no tail at all.
Fact: They do. It is 7 to 12 cm long (SDZWA). Why people believe it: the tail is hidden in thick fur and rarely shows in photos.
Test yourself
1. How long is a polar bear’s tail?
About 7–12 cm (3–5 in).
2. Why is it so short?
A short, compact tail helps prevent heat loss.
3. Is a male’s tail longer than a female’s?
No. The San Diego Zoo fact sheet gives the same 7–12 cm for both.
Where to next?
➡️ Go wider: do bears have tails?⬆️ Go deeper: polar bear adaptations🔀 Go sideways: how big is a polar bear?
Frequently asked questions
Can you see a polar bear’s tail?
Sometimes, if you look closely at the bear’s rear. The tail is only 7 to 12 cm (3 to 5 in) long, according to San Diego Zoo Wildlife Alliance, and it is covered in the same thick fur as the body. In most photos it blends into the coat and is easy to miss.
Do polar bear cubs have tails?
Yes, cubs have tails too, just in proportion to their small bodies. A newborn polar bear is only about 30 to 35 cm long and weighs little more than half a kilogram, says Polar Bears International. We could not find a published measurement of a cub’s tail.
Is a polar bear’s tail shorter than a grizzly’s?
Usually a little. Polar bear tails are 7 to 12 cm long, while brown bear tails, including grizzlies, are 6 to 20 cm, according to San Diego Zoo Wildlife Alliance fact sheets. The two ranges overlap, so some grizzlies have tails no longer than a polar bear’s.
Sources
- San Diego Zoo Wildlife Alliance Library. Polar bear fact sheet: physical characteristics.
- San Diego Zoo Wildlife Alliance Library. Brown bear fact sheet: physical characteristics.
- Polar Bears International. Adaptations and characteristics.
- Polar Bears International. Polar bear facts.
- Animal Diversity Web, University of Michigan. Ursus maritimus.
Sources checked 12 October 2026.
you guys standing bear is scary and i am only 9 years old and do not show the butt of polar bear LOL and a polar bear can not swim