The color of Green Iguanas (Iguana iguana) is actually variable from green to brown to gray to even reddish-orange.
Males have longer and thicker dorsal spines than females.

The Green Iguana is native to Central and South America, and was introduced into Puerto Rico in the 1970s as a result of pet trade.

1st, 2nd & 3rd photo: A male. El Yunque National Forest, Puerto Rico, 21 January 2026
4th & 5th photo: Manati Nature Reserve, Manati, Puerto Rico, 15 January 2026