Iguanas have a look that seems to hark back to a life in the very distant past of this planet. These reptiles are found primarily in the Americas, and in modern times have become a sort of cult object, and in some cases the source of concern for the very survival of certain species within the extensive family.
Iguanids constitute a family that covers 650 to 700 species, says the Familia iguanidae website, which also notes that nearly all of them inhabit the "new world" of the Americas, save for the exceptions in Madagascar and Fiji. Iguana species vary greatly, giving the lie to the large reptile stereotype.
From the point of view of scientific classification, iguanas are of "complicated design" and the various species range from a mere 7.5 cm to a full 2.0 meters long. They can be insect-eaters, carnivores, herbivores or omnivores.
Most iguanas reproduce by laying eggs, but there are some exceptions, which give live birth, such as the Phrynosoma douglassi, says another website.
The most popular face of these reptiles belongs to the green iguana, which is the preferred species among enthusiasts who raise these reptiles. Their dinosaur looks but docile character have conquered the hearts of many humans.
But beyond interest in iguanas as unique reptiles or as pets, there are many who are involved in fighting for their protection. These animals can be victims of habitat destruction as well as hunting, as there are people who deal in the unregulated trade of iguana meat and eggs.
On the Internet, the cases of the Mona Island iguana and the Utila iguana are highlighted in campaigns underway to protect them from extinction.