Eastern Massasauga Rattlesnake
Scientific Name
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Order
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Estimated Wild Population
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Physical Description
Eastern massasauga rattlesnakes can reach up to 30 inches in length. Their cryptic coloration—irregularly dark saddles alternating against a lighter background—helps them blend into the leaves and branches of their wetland habitat, and their tail ends in a namesake "rattle," a collection of modified scales. They spend the winter hibernating in underwater burrows, where the cold temperature induces a state of suspended animation until spring.
Interesting Fact 1
Eastern massasaugas rarely use their tail rattle to warn off predators, opting instead to stay motionless in the presence of intruders.
Interesting Fact 2
These snakes detect their prey via vibrations in the ground, a strong sense of smell, and heat-sensing pits on the sides of their face.
Interesting Fact 3
Although their venom is potentially life threatening, they aren't generally considered a threat to humans, as they are reluctant to bite and typically only do so when cornered.
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®.
Commitment to Care
Lincoln Park Zoo prioritizes individual well-being over everything else. Guided by scientific research, staff and volunteers work to provide the best welfare outcomes for each individual in the zoo’s care.
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Wish List
The Wish List is full of one-of-a-kind items for the zoo’s animals, including nutritious snacks and enrichment items to keep them active and healthy.
Take Action With Us
Wildlife face many daunting challenges—some global, like planet-wide climate change, and some that affect individuals, like an animal ingesting plastic—but now is not the time to despair. None of these problems are too big for us to come together and solve.
