The most endangered reptile

Santa Catalina Island in Mexico : the rattlesnake has been classified as critically endangered on the 2007 IUCN Red List.

In Australia the last remaining populations of broad-headed snakes are being threatened by encroaching woodland that is destroying their habitat.

Crocodiles are throwbacks to the time of the dinosaurs, having changed very little for hundreds of millions of years.They are endangered .

Anegada ground iguana also

The Antiguan racer is an extremely rare species of snake that lives on Antigua, a Caribbean island.

The bog turtle is a small reptile species that is native to the eastern United States.

The Egyptian tortoise lives in the fairly arid, low-humidity coastal desert regions of the Middle East.

The green sea turtle is the largest of the world's sea turtles.

The Hawks-bill sea turtle is one of seven sea turtles found in the tropical and subtropical waters of the world.

The keeled Box turtle is a reptile found in the evergreen forests of India, Myanmar, Vietnam, Thailand and China.

The Komodo dragon is the world's heaviest lizard, weighing 150 pounds or more.

The leaf-nosed lizard is endemic to Sri Lanka. It has a long, pointed snout with a horn at the tip, which is flattened and leaf-shaped.

Weighing up to about 1,700 pounds, the leather back sea turtle is by far the largest sea turtle.

The loggerhead sea turtle is so named for its large head.

The painted terrapin is a rare aquatic turtle found in Southeast Asia. It is an estuarine species, which means it prefers brackish water.

The Round Island boa is a rare and elusive snake species about which not much is known.

The Siamese crocodile is a Southeast Asian reptile that lives in slow-moving freshwater habitats such as rivers, swamps and streams.

The spineless forest lizard is one of several lizard species endemic to the forests of Sri Lanka.

The Virgin Islands tree boa is a brown snake with dark spots that lives in the Virgin Islands, Puerto Rico and other nearby islands.