The federal capital does not have poisonous snakes, but the aggressive and highly venomous pit viper yarará is found in parts of Buenos Aires Province and elsewhere in the country. The timid but even more venomous coral snake is found in humid areas such as the Paraná Delta.
The yarará, whose venom paralyzes the nervous system, is responsible for most snakebite incidents, but strikes are not common. Death is not instantaneous and antivenins are available, but the wisest tactic is to be alert and avoid confrontation. If bitten, get to medical facilities as quickly as possible, but avoid excessive movement that helps the venom circulate.
© Wayne Bernhardson from Moon Argentina, 3rd edition