All comparisons

Giant Otter vs Sea Otter

How does the Giant Otter compare to the Sea Otter? They are both members of the Mustelidae family. Below we put their classification, habitat, diet, size, and conservation status side by side — and settle who would win in a fight.

Giant Otter
Sea Otter

Side-by-side comparison

Giant Otter
Sea Otter
Scientific name
Pteronura brasiliensis
Enhydra lutris
Classification
Mammal
Mammal
Family
Mustelidae
Mustelidae
Habitat
Freshwater rivers, lakes, and wetlands in tropical rainforests
Coastal kelp forests and rocky shores
Diet
Carnivore
Carnivore
Conservation status
Endangered
Endangered
Lifespan
10-12 years in the wild
10–20 years
Weight
22–34 kg (49–75 lbs)
14–45 kg (31–99 lbs)

Giant Otter vs Sea Otter: who would win?

Giant Otter

Giant Otter

22–34 kg (49–75 lbs)

VS
Sea Otter

Sea Otter

14–45 kg (31–99 lbs)

Too close to call speculative confidence

Giant Otter and Sea Otter are closely matched on both size (22–34 kg (49–75 lbs) vs 14–45 kg (31–99 lbs)) and diet, so the outcome would come down to circumstance. In the wild these two rarely (if ever) meet — this is a what-if based on the size and diet we have on record, not a prediction.

Similarities

  • Both are mammals.
  • Both belong to the Mustelidae family.
  • Both have a carnivore diet.
  • Both are listed as Endangered.

Differences

  • Habitat: Freshwater rivers, lakes, and wetlands in tropical rainforests vs Coastal kelp forests and rocky shores.
  • Weight: 22–34 kg (49–75 lbs) vs 14–45 kg (31–99 lbs).

Giant Otter vs Sea Otter: FAQ

Who would win in a fight, a Giant Otter or a Sea Otter?

Too close to call. Giant Otter and Sea Otter are closely matched on both size (22–34 kg (49–75 lbs) vs 14–45 kg (31–99 lbs)) and diet, so the outcome would come down to circumstance. In the wild these two rarely (if ever) meet — this is a what-if based on the size and diet we have on record, not a prediction.

What is the difference between a Giant Otter and a Sea Otter?

Giant Otter and Sea Otter differ in several ways — habitat: freshwater rivers, lakes, and wetlands in tropical rainforests vs coastal kelp forests and rocky shores. weight: 22–34 kg (49–75 lbs) vs 14–45 kg (31–99 lbs).

Do Giant Otter and Sea Otter live in the same habitat?

No — Giant Otter lives in freshwater rivers, lakes, and wetlands in tropical rainforests, while Sea Otter is found in coastal kelp forests and rocky shores.

What do Giant Otter and Sea Otter eat?

Both Giant Otter and Sea Otter have a carnivore diet.

Which is more endangered, the Giant Otter or the Sea Otter?

Giant Otter is listed as Endangered, while Sea Otter is listed as Endangered.

How big are Giant Otter and Sea Otter?

Giant Otter weighs around 22–34 kg (49–75 lbs), while Sea Otter weighs around 14–45 kg (31–99 lbs).

Giant Otter

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Giant Otter

Sea Otter

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Sea Otter