AnAge entry for Elephas maximus
Classification (HAGRID: 03265)
- Taxonomy
-
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia (Taxon entry)
Order: Proboscidea
Family: Elephantidae
Genus: Elephas
- Species
- Elephas maximus
- Common name
- Asian elephant
Lifespan, ageing, and relevant traits
- Maximum longevity
- 65.5 years (captivity)
- Source
- ref. 671
- Sample size
- Large
- Data quality
- Acceptable
- Observations
Elephants are long-lived mammals but suffer from teeth erosion as a type of mechanical senescence despite having as much as six sets of molars in a lifetime. Although both sexes may become sexually mature at about 9 years of age, males do not normally reproduce until they are about 15 years old. Full size is attained at about 17 years of age [0434]. There is much speculation and anecdotes about the longevity of elephants with reports of animals living more than 80 years. In particular, it has been reported that a male elephant called "Lin Wang" died at the age of 86 in Taipei Zoo [0536]. This record is unconfirmed, however, because the animal was estimated to be 26 when it was obtained, which is impossible to verify. Other reports of animals living over 70 years are plausible but have not yet been verified. Therefore, the oldest elephant on record was probably a wild born female that was about 65-66 years when she died in captivity [0671].
Life history traits (averages)
- Female sexual maturity
- 3,287 days
- Male sexual maturity
- 3,287 days
- Gestation
- 644 days
- Weaning
- 548 days
- Litter size
- 1 (viviparous)
- Litters per year
- 0.2
- Inter-litter interval
- 1,141 days
- Weight at birth
- 107,000 g
- Weight at weaning
- Adult weight
- 3,178,000 g
- Postnatal growth rate
- Maximum longevity residual
- 135%
Metabolism
- Typical body temperature
- 309ºK or 35.8ºC or 96.4ºF
- Basal metabolic rate
- 2336.5000 W
- Body mass
- 3672000.0 g
- Metabolic rate per body mass
- 0.000636 W/g
References
- [0671] Richard Weigl (2005), Longevity of Mammals in Captivity; from the Living Collections of the World
- [0036] Savage et al. (2004), The predominance of quarter-power scaling in biology
- [0536] Wiese and Willis (2004), Calculation of longevity and life expectancy in captive elephants
- [0610] Ernest (2003), Life history characteristics of placental non-volant mammals
- [1006] Sarma et al. (2002), Medetomidine a novel immobilizing agent for the elephant (Elephas maximus), PubMed
- [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
- [0568] Jones (1992), Longevity of mammals in captivity--an update, PubMed
- [0002] Caleb Finch (1990), Longevity, Senescence, and the Genome
- [0680] Wootton (1987), The effects of body mass, phylogeny, habitat, and trophic level on mammalian age at first reproduction
- [0436] Cutler (1979), Evolution of human longevity: a critical overview, PubMed
External Resources
- Integrated Taxonomic Information System
- ITIS 584938
- Animal Diversity Web
- ADW account
- Encyclopaedia of Life
- Search EOL
- Genome Project
- Search NCBI
- Entrez
- Search all databases or Entrez Taxonomy search
- Ageing Literature
- Search Google Scholar or Search PubMed or Search Scirus
- Images
- Google Image search
- Internet
- Search Google

