The Aruba Island rattlesnake is one of the rarest rattlesnakes in the world. The habitat remaining on Aruba Island is threatened by logging, agriculture, and development. The snakes are also captured for the pet trade and hunted for their rattles. Conservation efforts are underway to protect the species and its habitat.
Aruba Island Rattlesnake
Crotalus unicolor
Fact File
Where to see them: Reptile House
Length: Up to 3 ft
Venomous: Venomous
Habitat: Dry regions, rocky hillsides, and desert
Diet: Rabbits and lizards
Risk Status: Species at Risk (IUCN—Critically Endangered)
Releasing Snakes: To bolster wild populations, captive-born rattlesnakes from U.S. zoos have been reintroduced on Aruba Island.
90-Second Naturalist 
