Federal Status

The Eastern Massasauga Rattlesnake (Sistrurus catenatus) listed in 2016 as Threatened under the Endangered Species Act is now under federal protection. A plan to recover the species is currently underway across its range.  Read More >

EMRSSP - What is it?

The Eastern Massasauga Rattlesnake Species Survival Plan® (EMRSSP) is a collaborative science-based management program of the Association of Zoos and Aquariums (AZA).  Read More >


Recent Updates

The EMRSSP has been active for more than a decade. Each year professionals from all over the country meet to discuss the management of the captive population of EMR and continue an annual long-term study of a population in southwest Michigan.

Our Latest Project

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