AnAge entry for Zalophus californianus

Classification (HAGRID: 02219)

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

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].

[1143] Nussey et al. (2013), Senescence in natural populations of animals: widespread evidence and its implications for bio-gerontology (PubMed)
[1136] Gomes et al. (2011), Comparative biology of mammalian telomeres: hypotheses on ancestral states and the roles of telomeres in longevity determination (PubMed)
[1021] Kuhn and Costa (2006), Identifying and quantifying prey consumption using stomach temperature change in pinnipeds (PubMed)
[0671] Richard Weigl (2005), Longevity of Mammals in Captivity; from the Living Collections of the World
[0443] Ronald Nowak (2003), Walker's Marine Mammals of the World
[0441] William Burt et al. (1998), A Field Guide to Mammals
[0455] Virginia Hayssen et al. (1993), Asdell's Patterns of Mammalian Reproduction: A Compendium of Species-Specific Data
[0542] Bernhard Grzimek (1990), Grzimek's Encyclopedia of Mammals