Mouse vs Otter
Quick answer
In a hypothetical one-on-one, the Otter 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
Least ConcernMouse vs Otter compared
| Attribute | Mouse | Otter |
|---|---|---|
| Weight | 20 g | 10 kg |
| Length | 9 cm | 1 m |
| Top speed | 13 km/h | 12 km/h |
| Strength | 3/100 | 18/100 |
| Deadliness | 5/100 | 12/100 |
| Intelligence | 35/100 | 65/100 |
| Lifespan | 3 yr | 13 yr |
Mouse vs Otter: common questions
Who would win in a fight, a Mouse or a Otter?
In a hypothetical one-on-one, the Otter 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 Mouse or the Otter?
The Otter is heavier, weighing around 10 kg compared with the other's 0.02 kg.
Which is faster, the Mouse or the Otter?
The Mouse is faster, reaching about 13 km/h versus 12 km/h.
Which lives longer, the Mouse or the Otter?
The Otter typically lives longer, up to around 13 years compared with 3 years.
Sources & references
Size, speed, and conservation data are drawn from established zoological references. Compare full profiles for habitat, diet, and behaviour:
- Mouse — full guide
IUCN Red List (Least Concern, Mus musculus)
- Otter — full guide
IUCN Red List (Least Concern, Lutrinae)
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