North American Beaver vs Fin Whale
Quick answer
In a hypothetical one-on-one, the Fin Whale would most likely come out on top decisively, thanks to its greater size and power and raw strength. In reality, animals like these rarely meet, and both would usually avoid a fight.
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
Least Concern
Mammal
VulnerableNorth American Beaver vs Fin Whale compared
| Attribute | North American Beaver | Fin Whale |
|---|---|---|
| Weight | 25 kg | 50 t |
| Length | 1 m | 22 m |
| Top speed | 55 km/h | 40 km/h |
| Strength | 50/100 | 95/100 |
| Deadliness | 10/100 | 10/100 |
| Intelligence | 62/100 | 75/100 |
| Lifespan | 20 yr | 85 yr |
North American Beaver vs Fin Whale: common questions
Who would win in a fight, a North American Beaver or a Fin Whale?
In a hypothetical one-on-one, the Fin Whale would most likely come out on top decisively, thanks to its greater size and power and raw strength. In reality, animals like these rarely meet, and both would usually avoid a fight.
Which is bigger, the North American Beaver or the Fin Whale?
The Fin Whale is heavier, weighing around 50,000 kg compared with the other's 25 kg.
Which is faster, the North American Beaver or the Fin Whale?
The North American Beaver is faster, reaching about 55 km/h versus 40 km/h.
Which lives longer, the North American Beaver or the Fin Whale?
The Fin Whale typically lives longer, up to around 85 years compared with 20 years.
Sources & references
Size, speed, and conservation data are drawn from established zoological references. Compare full profiles for habitat, diet, and behaviour:
- North American Beaver — full guide
IUCN Red List (Least Concern, Castor canadensis)
- Fin Whale — full guide
IUCN Red List (Vulnerable, Balaenoptera physalus)
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