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AnAge entry for Monachus schauinslandi

Classification (HAGRID: 02579)
TaxonomyKingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Carnivora
                Family: Phocidae
                    Genus: Monachus
SpeciesMonachus schauinslandi
Common nameHawaiian monk seal

Lifespan, ageing, and relevant traits

Maximum longevityNot yet established
Observations

In the wild, these animals are believed to live up to 30 years [0573]. Little is known about their longevity in captivity, though one wild born specimen was still living in captivity at about 22.8 years of age [0671].

Life history traits (averages)

Female sexual maturity1,825 days
Male sexual maturity
Gestation335 days
Weaning35 days
Litter size1 (viviparous)
Litters per year0.5
Inter-litter interval465 days
Weight at birth17,000 g
Weight at weaning64,000 g
Adult weight222,500 g
Postnatal growth rate

Metabolism

No information on metabolism available.

References
[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
[0610] Ernest (2003), Life history characteristics of placental non-volant mammals
[0434] Ronald Nowak (1999), Walker's Mammals of the World
[0455] Virginia Hayssen et al. (1993), Asdell's Patterns of Mammalian Reproduction: A Compendium of Species-Specific Data
[0573] David Macdonald (1985), The Encyclopedia of Mammals

External resources

Integrated Taxonomic Information SystemITIS 180661
Animal Diversity WebADW account
Encyclopedia of LifeSearch EOL
Genome ProjectSearch NCBI
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