response: I read that they have a third eye on their heads
history: I used to have a pet Iguana. His name was Junior. Interesting. Did you know that iguanas are native to places like Mexico, South America, the caribbean and central america? I did'nt know that, what else do you know about iguanas ? There are two species of ''Iguana'' the green iguana and the lesser antillaean Iguana Junior was a green iguana. His favorite food was Strawberries. I read they can range in length including their tail.  About how long was yours? He wasn't super long. Maybe a couple of feet. Kinda a little guy as iguanas go.
knowledge: The two species of lizard within the genus ''Iguana'' possess a dewlap, a row of spines running down their backs to their tails, and a tiny ''third eye'' on their heads.