Eastern Diamondback Rattlesnake

Crotalus adamanteus
See them at Vaughan and Whitby

Animals on display may vary.

Diet

Eastern Diamondback Rattlesnakes are carnivorous and primarily feed on small mammals such as rats, mice, rabbits, and squirrels. They are ambush predators, lying in wait for their prey before striking with their venomous bite.

Average lifespan

In the wild, Eastern Diamondback Rattlesnakes typically live around 10 to 20 years.

Size

Eastern Diamondback Rattlesnakes are one of the largest venomous snakes in North America. They can reach lengths of up to 1.8 to 2.4 meters (6 to 8 feet).

Weight

Adult Eastern Diamondback Rattlesnakes can weigh between 2.7 to 6.8 kilograms (6 to 15 pounds).

About

Eastern Diamondback Rattlesnakes are native to the southeastern United States, inhabiting a variety of habitats including pine forests, scrublands, and coastal dunes. They are named for the distinctive diamond-shaped patterns on their dorsal scales and the rattle at the end of their tail, which they use as a warning signal when threatened.

Size and behavior

Eastern Diamondback Rattlesnakes are primarily terrestrial, but they are also capable swimmers. They are solitary and nocturnal hunters, relying on their excellent camouflage to ambush prey. When threatened, they will coil and rattle their tails as a warning signal before striking if necessary.

Diet and nutrition

Eastern Diamondback Rattlesnakes have a carnivorous diet consisting mainly of small mammals. Their venomous bite immobilizes their prey, allowing them to consume it at their leisure. After swallowing their prey whole, they use powerful digestive enzymes to break down and assimilate nutrients from their meal.
Temperate Forests & Ponds

Conservation status

Eastern Diamondback Rattlesnakes are classified as Least Concern by the IUCN, but their numbers have declined significantly across much of the southeastern United States. Habitat loss, especially of longleaf pine forests, along with road deaths and persecution by people, are their main threats.

Fun fact

Eastern Diamondback Rattlesnakes have specialized heat-sensing pits located between their nostrils and eyes, which allow them to detect infrared radiation emitted by warm-blooded prey. This unique sensory adaptation helps them locate and strike at prey even in low light conditions or dense vegetation.
Common Name: Eastern Diamondback Rattlesnake
Also known as: Cajun

Visit in person

Animals on display vary by location and may change from day to day.