AnAge entry for Enhydra lutris

Lifespan, ageing, and relevant traits

There is a delayed implantation and the total gestation time varies from 4 to 12 months. The actual embryonic development takes about 4-5.5 months [0443]. It has been suggested that longevity in the wild may be as high as 30 years [0542], which is dubious. One wild born female was about 27 years old when she died in captivity [0671].

Life history traits (averages)

Metabolism

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
[0443] Ronald Nowak (2003), Walker's Marine Mammals of the World
[0610] Ernest (2003), Life history characteristics of placental non-volant mammals
[0434] Ronald Nowak (1999), Walker's Mammals of the World
[0538] Don Wilson and Sue Ruff (1999), The Smithsonian Book of North American Mammals
[0441] William Burt et al. (1998), A Field Guide to Mammals
[0455] Virginia Hayssen et al. (1993), Asdell's Patterns of Mammalian Reproduction: A Compendium of Species-Specific Data
[0542] Bernhard Grzimek (1990), Grzimek's Encyclopedia of Mammals
[0680] Wootton (1987), The effects of body mass, phylogeny, habitat, and trophic level on mammalian age at first reproduction

External resources

Search all databases

Entrez Taxonomy search

Search Google Scholar

Search PubMed

Search Scirus