Eastern massasauga rattlesnake
Sistrurus catenatus catenatus
Eastern massasauga rattlesnakes can reach up to 30 inches in length. The snakes have irregular dark saddles alternating against a lighter background. Their tails end in the namesake “rattle,” a collection of modified scales. Eastern massasaugas rarely use their rattle, however, opting instead to stay motionless in response to intruders.