rhamphotheca: Mona Isld. Ground Iguana (Cyclura cornuta stejnegeri)  

- THREATENED  
Mona ground iguanas are massive, primeval-looking lizards growing 3 to 4 feet in length, with several small horns protruding from the snout, two prominent bulges crowning the head, sagging jowl muscles in older individuals, a throat fan or dewlap, a crest along the back, and wrinkled skin of a dark brown color. Juvenile iguanas have a banded pattern which lasts until they are about 3 years old. These threatened lizards live off of the coast of Puerto Rico on Mona Island.
(via: NSF - Science360)     (Image credit: Jan Paul Zegarra, U.S.F.W.S)

rhamphotheca: Mona Isld. Ground Iguana (Cyclura cornuta stejnegeri)  

- THREATENED  

Mona ground iguanas are massive, primeval-looking lizards growing 3 to 4 feet in length, with several small horns protruding from the snout, two prominent bulges crowning the head, sagging jowl muscles in older individuals, a throat fan or dewlap, a crest along the back, and wrinkled skin of a dark brown color. Juvenile iguanas have a banded pattern which lasts until they are about 3 years old. These threatened lizards live off of the coast of Puerto Rico on Mona Island.

(via: NSF - Science360)     (Image credit: Jan Paul Zegarra, U.S.F.W.S)