Polar Bear vs Grizzly Bear
Quick answer
It is too close to call. The Polar Bear and the Grizzly Bear are evenly matched on paper, and in the wild the outcome would come down to size, surprise, and circumstance.
This is a hypothetical, educational comparison based on typical size, strength, and natural weaponry. In the wild these animals rarely meet, and most encounters end without a fight.

Mammal
Vulnerable
Mammal
Least ConcernPolar Bear vs Grizzly Bear compared
| Attribute | Polar Bear | Grizzly Bear |
|---|---|---|
| Weight | 700 kg | 360 kg |
| Length | 3 m | 2 m |
| Top speed | 40 km/h | 56 km/h |
| Strength | 92/100 | 92/100 |
| Deadliness | 86/100 | 80/100 |
| Intelligence | 70/100 | 70/100 |
| Lifespan | 25 yr | 25 yr |
Polar Bear vs Grizzly Bear: common questions
Who would win in a fight, a Polar Bear or a Grizzly Bear?
It is too close to call. The Polar Bear and the Grizzly Bear are evenly matched on paper, and in the wild the outcome would come down to size, surprise, and circumstance.
Which is bigger, the Polar Bear or the Grizzly Bear?
The Polar Bear is heavier, weighing around 700 kg compared with the other's 360 kg.
Which is faster, the Polar Bear or the Grizzly Bear?
The Grizzly Bear is faster, reaching about 56 km/h versus 40 km/h.
Which lives longer, the Polar Bear or the Grizzly Bear?
The Polar Bear typically lives longer, up to around 25 years compared with 25 years.
Sources & references
Size, speed, and conservation data are drawn from established zoological references. Compare full profiles for habitat, diet, and behaviour:
- Polar Bear — full guide
IUCN Red List (Vulnerable, Ursus maritimus)
- Grizzly Bear — full guide
IUCN Red List (Least Concern, Ursus arctos horribilis)
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