AnAge entry for Hydrurga leptonyx

Classification (HAGRID: 02675)

Taxonomy
Kingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Carnivora
                Family: Phocidae
                    Genus: Hydrurga
Species
Hydrurga leptonyx
Common name
Leopard seal

Lifespan, ageing, and relevant traits

Maximum longevity
Not yet established
Observations

The 2 months delayed implantation increases the pregnancy period to 11 months [0443]. In the wild, females have been estimated to live for more than 26 years [0542]. Little is known about their longevity in captivity. One wild born animal was about 17.3 years when it died in captivity [0671]. Further studies are needed.

Life history traits (averages)

Female sexual maturity
1,095 days
Male sexual maturity
1,461 days
Gestation
274 days
Weaning
30 days
Litter size
1 (viviparous)
Litters per year
Inter-litter interval
365 days
Weight at birth
30,000 g
Weight at weaning
Adult weight
367,750 g
Postnatal growth rate

Metabolism

No information on metabolism is available.

References

External Resources

Integrated Taxonomic Information System
ITIS 180667
Animal Diversity Web
ADW account
Encyclopaedia of Life
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NCBI Taxonomy
Taxonomy ID 29086
Entrez
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Ageing Literature
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Internet
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