AnAge entry for Phascolarctos cinereus

Classification (HAGRID: 02890)
Taxonomy	Kingdom: Animalia Phylum: Chordata Class: Mammalia (Taxon entry) Order: Diprotodontia Family: Phascolarctidae Genus: Phascolarctos
Species	Phascolarctos cinereus
Common name	Koala
Lifespan, ageing, and relevant traits
Maximum longevity	22.1 years (captivity)
Source	ref. 671
Sample size	large
Data quality	high
Observations	In captivity, the koala may live up to 22.1 years [0671].
Life history traits (averages)
Female sexual maturity	646 days
Male sexual maturity	1,095 days
Gestation	31 days
Weaning	342 days
Litter size	1 (viviparous)
Litters per year
Inter-litter interval	471 days
Weight at birth	0.36 g
Weight at weaning	1,155 g
Adult weight	9,300 g
Postnatal growth rate	0.0028 days^-1 (from Gompertz function)
Maximum longevity residual	111 %
Metabolism
Typical body temperature	309ºK or 35.8ºC or 96.4ºF
Basal metabolic rate	5.7440 W
Body mass	4732.4 g
Metabolic rate per body mass	0.001214 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 [0420] White and Seymour (2003), Mammalian basal metabolic rate is proportional to body mass2/3, 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 [0731] Zullinger et al. (1984), Fitting sigmoid equations to mammalian growth curves
External resources
Integrated Taxonomic Information System	ITIS 552677
Animal Diversity Web	ADW account
Encyclopedia of Life	Search EOL
Genome Project	Search NCBI
Entrez	Search all databases Entrez Taxonomy search
Ageing literature	Search Google Scholar Search PubMed Search Scirus
Images	Google Image search
Internet	Search Google

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