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| Classification (HAGRID: 02643) | |
| Taxonomy | Kingdom: Animalia Phylum: Chordata Class: Mammalia (Taxon entry) Order: Cetacea (Taxon entry) Family: Delphinidae Genus: Orcinus |
| Species | Orcinus orca |
| Common name | Killer whale |
Lifespan, ageing, and relevant traits | |
| IMR | Not yet available |
| MRDT | 14 years |
| Maximum longevity | 90 years (wild) |
| Source | ref. 784 |
| Sample size | medium |
| Data quality | acceptable |
| Observations | Reproductive senescence has been reported in this species and no female over the age of 48 has been observed to give birth. Maximum longevity in the wild has been estimated to be around 90 years and the MRDT was calculated to be about 14 for females [0784]. Anecdotal evidence, which could be true, suggests these animals may live up to 100 years. In captivity, one wild born animal was still alive at about 37 years of age [0671]. |
Life history traits (averages) | |
| Female sexual maturity | 3,780 days |
| Male sexual maturity | 4,930 days |
| Gestation | 435 days |
| Weaning | 471 days |
| Litter size | 1 (viviparous) |
| Litters per year | 0.2 |
| Inter-litter interval | 1,096 days |
| Weight at birth | 180,000 g |
| Weight at weaning | |
| Adult weight | 3,987,500 g |
| Postnatal growth rate | |
Metabolism | |
| No information on metabolism available. | |
References |
|
[0784] Foote (2008), Mortality rate acceleration and post-reproductive lifespan in matrilineal whale species, PubMed | |
External resources | |
| Integrated Taxonomic Information System | ITIS 180469 |
| 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.