Massasauga Rattlesnake, Michigan’s #1 Venomous Viper
by Michigan has become an important laboratory for the study and preservation of one of them, the eastern massasauga rattlesnake, the only venomous viper that inhabits the state. Massasauga rattlesnakes were listed as a federally threatened species under the Endangered Species Act in 2016 and are thereby protected animals.