Yarará Lancehead

''Bothrops jararaca'', known as the ''jararaca'', is a species of pit viper endemic to southern Brazil, Paraguay, and northern Argentina. The specific name, ''jararaca'', is derived from the Tupi words ''yarará'' and ''ca'', which mean "large snake". Within its geographic range, it is often abundant and is an important cause of snakebite. No subspecies are currently recognized.