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  3. Western Diamond-backed Rattlesnake

One of the 26 snakes on WAnimals

Reptiles · Squamata · Viperidae

Western Diamond-backed Rattlesnake

Crotalus atrox

Least Concern

The species is abundant and widely distributed; it faces no significant short-term risk.

Spotted something wrong?

It is probably responsible for most snakebite deaths in northern Mexico and for a high number of bites in the United States.

Weight

up to 6.7 kg

Size

80 cm – 2.1 m

Life expectancy

17 years

Diet

Carnivore

Feeds mainly on other animals.

Activity

Nocturnal

Active mainly at night.

Social structure

Solitary

Lives and hunts alone, joining others only to breed.

Sighting difficulty

Easy

Desert
2countries10parks22same family

Fun facts

  • It is probably responsible for most snakebite deaths in northern Mexico.
  • It locates its prey through heat-sensing pits.
  • Its litters often have several genetic fathers.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (reptile)
Habitat and environment
Desert, arid scrub and rocky grassland of the south-western United States and northern Mexico
Birth weight
Born live (ovoviviparous), fully developed and venomous from birth
Size at birth
Born fully formed and functional, able to bite from the first moment
Sexual maturity
3 years
Gestation / incubation
~165 days (approximately 6-7 months)
Litter / clutch size
4 to 25 young per litter (most commonly 10-20)
Life expectancy in captivity
Documented record of more than 20 years in captivity

Sources consulted: A-Z Animals; Animal Diversity Web; Biology Insights; Animalia.bio; PMC (mating systems and paternity study); U.S. Fish & Wildlife Service

Where to find it

Loading map…

The pins mark the parks where its presence is documented.

Where to see it

Parks and dive sites where this species has been documented.

Related species

Other species in the catalogue with the most in common with Western Diamond-backed Rattlesnake — same habitat, park, country, tags or family.

Same taxonomic family
Same taxonomic family
Same taxonomic family
Same taxonomic family
Same taxonomic family
Same taxonomic family

Keep exploring

Based on what we already know about western diamond-backed rattlesnake.

Comments

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See full glossary
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See its range on the interactive map→
Grand CanyonUnited States
Big BendUnited States
El Pinacate and Gran Desierto de AltarMexico
Sierra GordaMexico
SaguaroUnited States
White SandsUnited States
Carlsbad CavernsUnited States
Guadalupe MountainsUnited States
Petrified ForestUnited States
Cumbres de MonterreyMexico
Least Concern

Sidewinder

Crotalus cerastes

Least Concern

Mohave Rattlesnake

Crotalus scutulatus

Least Concern

Cottonmouth

Agkistrodon piscivorus

Least Concern

Copperhead

Agkistrodon contortrix

Least Concern

Cascabel Rattlesnake

Crotalus durissus

Least Concern

Eastern Diamondback Rattlesnake

Crotalus adamanteus

CountriesUnited States
ParksGrand CanyonUnited States
TagsCarnivore
Carnivore
Nocturnal
Solitary
Reptile
Desert
United States
Mexico