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  3. Californian Sea Lion

One of the 3 sea lions on WAnimals

Californian Sea Lion (Zalophus californianus)

Mammals · Carnivora · Otariidae

Californian Sea Lion

Zalophus californianus

Least Concern

The species is abundant and widely distributed; it faces no significant short-term risk.

Spotted something wrong?

It is one of the most intelligent and trainable pinnipeds, which is why it is a familiar sight in shows and in naval research programmes on echolocation.

Weight

50 kg – 400 kg

Size

1.5 m – 2.5 m

Life expectancy

17 years

Diet

Carnivore

Feeds mainly on other animals.

Activity

Diurnal

Active mainly during the day.

Social structure

Hierarchical pack

Lives in an organised hierarchical group, typical of cooperative hunters.

Sighting difficulty

Easy

Ocean
3countries13parks12dive sites10same family

AI-generated images: illustrations, not photographs.

Fun facts

  • It is one of the most intelligent and trainable pinnipeds in the world.
  • Males grow a prominent bony sagittal crest on the head when they reach sexual maturity.
  • It is a regular member of the US Navy's marine mammal programme, which trains it to locate and recover underwater objects.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (mammal)
Habitat and environment
Coasts of the eastern Pacific from Canada to Mexico, favouring areas altered by people
Birth weight
5-6 kg and ~75 cm long at birth
Size at birth
5-6 kg and ~75 cm at birth
Sexual maturity
4-5 years
Gestation / incubation
~11-11.5 months, with ~3 months of delayed implantation
Litter / clutch size
1 young per birth
Life expectancy in captivity
Documented record of up to 35.7 years

Sources consulted: Animal Diversity Web; A-Z Animals (Grey Seal, comparative); AnAge (genomics.senescence.info); Ocean Connections; Wikipedia (Zalophus); Michigan State University Brain Museum

Where to find it

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The pins mark the parks and dive sites where its presence is documented.

Where to see it

Parks and dive sites where this species has been documented — showing 20 of 25.

Related species

Other species in the catalogue with the most in common with Californian Sea Lion — same habitat, park, country, tags or family.

Same taxonomic family
Same taxonomic family
Shares a park
Shares a park
Shares a park
Shares a park

Related guides

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Based on what we already know about californian sea lion.

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See full glossary
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See its range on the interactive map→
RedwoodUnited States
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Catalina Island (Casino Point)United States
Wreck Alley (San Diego)United States
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Where to dive with Californian Sea Lion4 places
CountriesMexico
ParksRedwoodUnited States
TagsCarnivore
Carnivore
Diurnal
In packs
Ocean
Mammal
Mexico
United States
Canada