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Aruba Island Rattlesnake

Crotalus durissus

A Rare Rattlesnake

The Aruba Island rattlesnake has a short and stocky-looking body, with a rattle-tipped tail. Its main body color is brown with a lighter brown tail tip. Their scaly skin also has pink, blue and brown diamond-shaped markings.

About the Species

The Aruba Island rattlesnake is one of the rarest rattlesnakes in the world!

This species is rare because it only exists naturally on the small island of Aruba, where just 25 square kilometers of habitat remains undisturbed. Aruba Island rattlesnakes belong to the viper family, and like other vipers it has a V-shaped head and venomous long hollow fangs which fold against the roof the mouth when not used.

Words From the Experts


The Aruba Island rattlesnake is one of the rarest rattlesnakes in the world! There is only 25 square kilometers of habitat left in the wild where they are found.



Did You Know?

This snake is nocturnal in the warmer months but active throughout the rest of the year in early mornings and late afternoons.


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Aruba Island (off the coast of Venezuela)

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Rocky, dry

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95 cm | .09–1.4 kg

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Small rodents, birds, lizards

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Crested Caracaras, merlins, osprey

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Natural Defenses

Coloration, venom, rattle on tail

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Ovoviviparous (eggs hatched within body); 5–9 babies per litter

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Critically Endangered

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Life Expectancy

12–20 years

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