AnAge entry for Hippopotamus amphibius

Classification (HAGRID: 02500)

Taxonomy
Kingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Artiodactyla
                Family: Hippopotamidae
                    Genus: Hippopotamus
Species
Hippopotamus amphibius
Common name
Hippopotamus

Lifespan, ageing, and relevant traits

IMR
0.01/year
MRDT
7 years
Maximum longevity
61.2 years (captivity)
Source
ref. 671
Sample size
Large
Data quality
Acceptable
Observations

Tooth erosion is a common age-related change in these animals. In captivity sexual maturity is attained at 3-4 years but in the wild mating does not occur until males are 6-13 years and females are 7-15 years [0434].

Life history traits (averages)

Female sexual maturity
1,279 days
Male sexual maturity
1,279 days
Gestation
234 days
Weaning
341 days
Litter size
1 (viviparous)
Litters per year
0.6
Inter-litter interval
563 days
Weight at birth
40,000 g
Weight at weaning
237,500 g
Adult weight
3,750,000 g
Postnatal growth rate
Maximum longevity residual
123%

Metabolism

Typical body temperature
309ºK or 35.4ºC or 95.7ºF
Basal metabolic rate
Not yet available

References

External Resources

Integrated Taxonomic Information System
ITIS 625024
Animal Diversity Web
ADW account
Encyclopaedia of Life
Search EOL
NCBI Taxonomy
Taxonomy ID 9833
Entrez
Search all databases
Ageing Literature
Search Google Scholar or Search PubMed or Search Scirus
Images
Google Image search
Internet
Search Google