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| Classification (HAGRID: 02577) | |
| Taxonomy | Kingdom: Animalia Phylum: Chordata Class: Mammalia (Taxon entry) Order: Carnivora Family: Phocidae Genus: Mirounga |
| Species | Mirounga leonina |
| Common name | Southern elephant seal |
Lifespan, ageing, and relevant traits | |
| Maximum longevity | Not yet established |
| Observations | The total gestation time, of about 11.5 months, includes a 3 to 4 months period of delayed implantation [0443]. Males are typically much bigger than females. In the wild, males have been reported to live more than 23 years [0001], and there are anecdotal reports of animals living over 25 years. Their longevity in captivity has not been studied in detail, but one specimen lived 23.7 years [0671]. |
Life history traits (averages) | |
| Female sexual maturity | 1,059 days |
| Male sexual maturity | 1,825 days |
| Gestation | 220 days |
| Weaning | 21 days |
| Litter size | 1 (viviparous) |
| Litters per year | 1 |
| Inter-litter interval | 365 days |
| Weight at birth | 42,500 g |
| Weight at weaning | 124,500 g |
| Adult weight | 1,400,000 g |
| Postnatal growth rate | 0.0008 days-1 (from Gompertz function) |
Metabolism | |
| No information on metabolism available. | |
References |
|
[0671] Richard Weigl (2005), Longevity of Mammals in Captivity; from the Living Collections of the World | |
External resources | |
| Integrated Taxonomic Information System | ITIS 180671 |
| Animal Diversity Web | ADW account |
| Encyclopedia of Life | Search EOL |
| Genome Project | Search NCBI |
| Entrez | |
| Ageing literature | |
| Images | Google Image search |
| Internet | Search Google |
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