Iguana (, ) is a genus of herbivorous lizards that are native to tropical areas of Mexico, Central America, South America\
My next door neighbor had an Iguana as a pet.  I don't know why.  You can't cuddle with an iguana!  
Two species are included in the genus "Iguana": the green iguana, which is widespread throughout its range and a popular pet, and the Lesser Antillean iguana