Transcription: The Gila monster is one of only two known species of venomous lizard. They're not aggressive nor are they fast movers so they shouldn't be able to take you by surprise. But a Gila monster bite can be serious if not life-threatening. So don't handle them. Their fangs are on the lower jaw and deliver a potent venom. So if you do get bitten seek medical attention straight away. The bite The bite of a big Gila monster can cause intense pain, dizziness and nausea.