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AnAge entry for Choloepus hoffmanni

Classification (HAGRID: 02985)
TaxonomyKingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Pilosa
                Family: Megalonychidae
                    Genus: Choloepus
SpeciesCholoepus hoffmanni
Common nameHoffmann's two-toed sloth

Lifespan, ageing, and relevant traits

Maximum longevity37 years (captivity)
SourceJohn Gramieri, pers. comm.
Sample sizemedium
Data qualityacceptable
Observations

A wild-caught male acquired in 1973 by San Antonio Zoo was still alive in 2009, making it at least 37 years of age (John Gramieri, pers. comm.).

Life history traits (averages)

Female sexual maturity730 days
Male sexual maturity1,095 days
Gestation350 days
Weaning21 days
Litter size1 (viviparous)
Litters per year0.7
Inter-litter interval456 days
Weight at birth402 g
Weight at weaning
Adult weight6,250 g
Postnatal growth rate
Maximum longevity residual198 %

Metabolism

Typical body temperature308ºK or 34.4ºC or 93.9ºF
Basal metabolic rate3.8910 W
Body mass4005.2 g
Metabolic rate per body mass0.000971 W/g

References
[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
[0610] Ernest (2003), Life history characteristics of placental non-volant mammals
[0470] Taube et al. (2001), Reproductive biology and postnatal development in sloths, Bradypus and Choloepus: review with original data from the field (French Guiana) and from captivity
[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
[0680] Wootton (1987), The effects of body mass, phylogeny, habitat, and trophic level on mammalian age at first reproduction

External resources

Integrated Taxonomic Information SystemITIS 624909
Animal Diversity WebADW account
Encyclopedia of LifeSearch EOL
Genome ProjectSearch NCBI
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