Toxicological trivia from December 17, 2009: recently was found that Komodo dragons kill their prey with the poison of their bite, rather than infecting their wounds as previously believed (see). Until then stated that there were no poisonous lizards in the world except for a single Gender-Heloderma – and two species: the "Gila Monster" and "lizard Accounts that live exclusively in territories:
a) North of Mexico and southern United States;
b) Mexico and northern South America;
c) None of the previous assertions are correct.

Correct Answer a. Read more in monograph in Spanish: "Venomous Animals of Argentina. Items for recognition and first aid measures in case of accidents (2006).