AnAge entry for Crotalus horridus

Classification (HAGRID: 03628)

Taxonomy: Kingdom: Animalia
    Phylum: Chordata
        Class: Reptilia (Taxon entry)
            Order: Squamata
                Family: Viperidae
                    Genus: Crotalus
Species: Crotalus horridus
Common name: Timber rattlesnake
Synonyms: Crotalus horridus atricaudatus, Crotalus horridus horridus, Crotalus atricaudatus

Lifespan, ageing, and relevant traits

Maximum longevity: 30.2 years (captivity)
Source: ref. 485
Sample size: Medium
Data quality: Acceptable
Observations: Their average lifespan in the wild is around 16-22 years [0440], but some anecdotal evidence suggests they may live up to 50 years in the wild [0528].

Life history traits (averages)

Female sexual maturity: 2,555 days
Male sexual maturity: 1,825 days
Gestation: 135 days
Litter size: 9 (viviparous)
Adult weight: 1,000 g

Metabolism

No information on metabolism is available.

References

[1308] Myhrvold et al. (2015), An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles
[0485] Andrew Snider and J. Bowler (1992), Longevity of Reptiles and Amphibians in North American Collections, Second Edition
[0440] New York State Department of Environmental Conservation
[0528] Partners in Amphibian And Reptile Conservation: Northeast Working Group

External Resources

Integrated Taxonomic Information System: ITIS 174306
Animal Diversity Web: ADW account (if available)
Encyclopaedia of Life: Search EOL
NCBI Taxonomy: Taxonomy ID 35024
Entrez: Search all databases
Ageing Literature: Search Google Scholar or Search PubMed
Images: Google Image search
Internet: Search Google