Eastern Massasauga Rattlesnake
The Eastern massasauga (Sistrurus catenatus) is a relatively small rattlesnake that is native to the Great Lakes region of eastern North America. It is one of three rattlesnake species found in Canada (a fourth is extirpated). Its Canadian distribution is restricted to several small, disjunct areas in southern Ontario. The massasauga has disappeared from much of its historical range. Populations continue to decline due to ongoing threats, including habitat loss, deaths on roads and intentional persecution from humans.