| AnAge Home | Help | Human Ageing Genomic Resources | Citation |
| Classification (HAGRID: 02569) | |
| Taxonomy | Kingdom: Animalia Phylum: Chordata Class: Mammalia (Taxon entry) Order: Carnivora Family: Phocidae Genus: Cystophora |
| Species | Cystophora cristata |
| Common name | Hooded seal |
Lifespan, ageing, and relevant traits | |
| Maximum longevity | Not yet established |
| Observations | The total gestation time, of approximately 11.5 months, includes a 4 months period of delayed implantation [0443]. In the wild, these animals have been estimated to live more than 35 years [0573]. Little is known about their longevity in captivity, though. |
Life history traits (averages) | |
| Female sexual maturity | 1,095 days |
| Male sexual maturity | 1,826 days |
| Gestation | 240 days |
| Weaning | 7 days |
| Litter size | 1 (viviparous) |
| Litters per year | 1 |
| Inter-litter interval | |
| Weight at birth | 18,000 g |
| Weight at weaning | 43,300 g |
| Adult weight | 405,000 g |
| Postnatal growth rate | |
Metabolism | |
| No information on metabolism available. | |
References |
|
[0443] Ronald Nowak (2003), Walker's Marine Mammals of the World | |
External resources | |
| Integrated Taxonomic Information System | ITIS 180657 |
| Animal Diversity Web | ADW account |
| Encyclopedia of Life | Search EOL |
| Genome Project | Search NCBI |
| Entrez | |
| Ageing literature | |
| Images | Google Image search |
| Internet | Search Google |
If you find any missing or incorrect data, please contact us.