Harbor Seal vs Northern Elephant Seal
How does the Harbor Seal compare to the Northern Elephant Seal? They are both members of the Phocidae family. Below we put their classification, habitat, diet, size, and conservation status side by side — and settle who would win in a fight.


Side-by-side comparison
- Scientific name
- Phoca vitulina
- Mirounga angustirostris
- Classification
- Mammal
- Mammal
- Family
- Phocidae
- Phocidae
- Habitat
- Coastal waters, estuaries, and sheltered bays
- Coastal beaches and islands along the Pacific coast of North America
- Diet
- Carnivore
- Carnivore
- Conservation status
- Least Concern
- Least Concern
- Lifespan
- 25-35 years
- 9-13 years
- Weight
- 55-170 kg
- 400 to 2,300 kg
Harbor Seal vs Northern Elephant Seal: who would win?

Harbor Seal
55-170 kg

Northern Elephant Seal
400 to 2,300 kg
Northern Elephant Seal wins high confidence
Northern Elephant Seal is substantially heavier (400 to 2,300 kg vs 55-170 kg). In a physical confrontation that size and power advantage is usually decisive. 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 Phocidae family.
- Both have a carnivore diet.
- Both are listed as Least Concern.
Differences
- Habitat: Coastal waters, estuaries, and sheltered bays vs Coastal beaches and islands along the Pacific coast of North America.
- Weight: 55-170 kg vs 400 to 2,300 kg.
Harbor Seal vs Northern Elephant Seal: FAQ
Who would win in a fight, a Harbor Seal or a Northern Elephant Seal?
Northern Elephant Seal wins. Northern Elephant Seal is substantially heavier (400 to 2,300 kg vs 55-170 kg). In a physical confrontation that size and power advantage is usually decisive. 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 Harbor Seal and a Northern Elephant Seal?
Harbor Seal and Northern Elephant Seal differ in several ways — habitat: coastal waters, estuaries, and sheltered bays vs coastal beaches and islands along the pacific coast of north america. weight: 55-170 kg vs 400 to 2,300 kg.
Do Harbor Seal and Northern Elephant Seal live in the same habitat?
No — Harbor Seal lives in coastal waters, estuaries, and sheltered bays, while Northern Elephant Seal is found in coastal beaches and islands along the pacific coast of north america.
What do Harbor Seal and Northern Elephant Seal eat?
Both Harbor Seal and Northern Elephant Seal have a carnivore diet.
Which is more endangered, the Harbor Seal or the Northern Elephant Seal?
Harbor Seal is listed as Least Concern, while Northern Elephant Seal is listed as Least Concern.
How big are Harbor Seal and Northern Elephant Seal?
Harbor Seal weighs around 55-170 kg, while Northern Elephant Seal weighs around 400 to 2,300 kg.

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Harbor Seal

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Northern Elephant Seal





