  agkistrodon piscivorus is a venomous snake, a species of pit viper, found in the southeastern united states. adults are large and capable of delivering a painful and potentially fatal bite. when antagonized, they will stand their ground by coiling their bodies and displaying their fangs.cottonmouth fact sheet. smithsonian institution. although their aggression has been exaggerated, on rare occasions territorial males will approach intruders in an aggressive manner.epa.gov wharton, c.h. 1969. the cottonmouth mocassin on sea horse key, florida. bull. florida st. mus., biol. sci. 14 :227â272. this is the world's only semiaquatic viper, usually found in or near water, particularly in slow-moving and shallow lakes, streams, and marshe
Crotalinae Fauna_of_the_Southeastern_United_States IUCN_Red_List_least_concern_species Reptiles_of_the_United_States