Aruba island rattlesnake in exhibit

Aruba Island Rattlesnake

Scientific Name
Crotalus unicolor
Aruba Island
Rocky hills
Estimated Wild Population
Aruba Island rattlesnake in exhibit Endangered Status Graph - Not Evaluated Endangered Status Graph - Not Evaluated

More Information

Aruba Island rattlesnakes vary from gray to pink to brown based on the color of their habitat. Their head and neck are adorned with diamond-shaped markings, which can extend down their body. These rattlesnakes can grow two to three feet in length. They are nocturnal during the warmer months, but are most active in early morning and late afternoon during the rest of the year. Their diet includes small rodents, birds, and lizards.

Did You Know?

The IUCN doesn’t have enough recent data to determine the endangered status of the Aruba Island rattlesnake, which was listed as critically endangered until 2021.

Aruba Island rattlesnakes use their tail rattle to warn off predators.

Although their venom is life-threatening to humans, these non-aggressive snakes are not categorized as dangerous because they only bite when provoked.

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Species Survival Plan®

We cooperate with other members of the Association of Zoos and Aquariums to manage the zoo population of this species through a Species Survival Plan®.

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