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Aruba Island Rattlesnake

Aruba Island Rattlesnake

Aruba Island Rattlesnake Fact Sheet

  • Latin Name

    Crotalus unicolor
  • Class

  • Order

  • Range

    As their name implies, Aruba Island rattlesnakes are found in their titular island off the coast of Venezuela.

  • Status

    Aruba Island rattlesnakes are listed as threatened. Lincoln Park Zoo participates in the Aruba Island Rattlesnake Species Survival Plan®, a shared conservation effort by zoos throughout the Association of Zoos and Aquariums.

  • Habitat

    They are found on rocky hillsides and sandy fields.

  • Niche

    Nocturnal during the warmer months, Aruba Island rattlesnakes are active in early morning and late afternoon during the rest of the year. Their diet includes small rodents, birds and lizards.

  • Life History

    These snakes have small litters of live young. The young are eight inches in length and have fully functioning venom glands at birth. They can live as long as 20 years.

  • Special Adaptations

    Heat sensing pits help the snake locate prey.

    The rattle at the end of the tail warns off enemies and acts as a first line of defense for the Aruba Island rattlesnake.


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