AnAge entry for Zalophus californianus

Classification (HAGRID: 02670)

Taxonomy
Kingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Carnivora
                Family: Otariidae
                    Genus: Zalophus
Species
Zalophus californianus
Common name
California sea lion

Lifespan, ageing, and relevant traits

Maximum longevity
35.7 years (captivity)
Source
ref. 671
Sample size
Large
Data quality
High
Observations

The total gestation time, of approximately 11.5 months, probably includes a 3 month period of delayed implantation [0443]. In the wild, these animals appear to live up to 17 years [0542]. One wild born male was still alive in captivity at about 35.7 years of age [0671].

Life history traits (averages)

Female sexual maturity
1,095 days
Male sexual maturity
1,826 days
Gestation
259 days
Weaning
315 days
Litter size
1.2 (viviparous)
Litters per year
0.5
Inter-litter interval
730 days
Weight at birth
7,000 g
Weight at weaning
25,000 g
Adult weight
180,000 g
Postnatal growth rate
Maximum longevity residual
114%

Metabolism

Typical body temperature
311ºK or 38.1ºC or 100.6ºF
Basal metabolic rate
Not yet available

References

External Resources

Integrated Taxonomic Information System
ITIS 180621
Animal Diversity Web
ADW account
Encyclopaedia of Life
Search EOL
NCBI Taxonomy
Taxonomy ID 9704
Entrez
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Ageing Literature
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Internet
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