Californian Sea Lion vs Steller Sea Lion
How does the Californian Sea Lion compare to the Steller Sea Lion? They are both members of the Otariidae 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
- Zalophus californianus
- Eumetopias jubatus
- Classification
- Mammal
- Mammal
- Family
- Otariidae
- Otariidae
- Habitat
- Coastal waters and rocky or sandy beaches
- Coastal marine environments and rocky shores
- Diet
- Carnivore
- Carnivore
- Conservation status
- Least Concern
- Near Threatened
- Lifespan
- 15-25 years
- 15-30 years
- Weight
- 90-390 kg
- 240–1,120 kg (530–2,470 lbs)
Californian Sea Lion vs Steller Sea Lion: who would win?

Californian Sea Lion
90-390 kg

Steller Sea Lion
240–1,120 kg (530–2,470 lbs)
Steller Sea Lion wins moderate confidence
Steller Sea Lion is substantially heavier (240–1,120 kg (530–2,470 lbs) vs 90-390 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 Otariidae family.
- Both have a carnivore diet.
Differences
- Habitat: Coastal waters and rocky or sandy beaches vs Coastal marine environments and rocky shores.
- Conservation: Least Concern vs Near Threatened.
- Weight: 90-390 kg vs 240–1,120 kg (530–2,470 lbs).
Californian Sea Lion vs Steller Sea Lion: FAQ
Who would win in a fight, a Californian Sea Lion or a Steller Sea Lion?
Steller Sea Lion wins. Steller Sea Lion is substantially heavier (240–1,120 kg (530–2,470 lbs) vs 90-390 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 Californian Sea Lion and a Steller Sea Lion?
Californian Sea Lion and Steller Sea Lion differ in several ways — habitat: coastal waters and rocky or sandy beaches vs coastal marine environments and rocky shores. conservation: least concern vs near threatened. weight: 90-390 kg vs 240–1,120 kg (530–2,470 lbs).
Do Californian Sea Lion and Steller Sea Lion live in the same habitat?
No — Californian Sea Lion lives in coastal waters and rocky or sandy beaches, while Steller Sea Lion is found in coastal marine environments and rocky shores.
What do Californian Sea Lion and Steller Sea Lion eat?
Both Californian Sea Lion and Steller Sea Lion have a carnivore diet.
Which is more endangered, the Californian Sea Lion or the Steller Sea Lion?
Californian Sea Lion is listed as Least Concern, while Steller Sea Lion is listed as Near Threatened.
How big are Californian Sea Lion and Steller Sea Lion?
Californian Sea Lion weighs around 90-390 kg, while Steller Sea Lion weighs around 240–1,120 kg (530–2,470 lbs).

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Californian Sea Lion

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Steller Sea Lion



