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Reptiles: Marine Iguanas of the Galapagos Islands

Related Article: Learn more about reptiles.

Marine Iguanas were once land-based.

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Fooled By Nature: Komodo Dragon (0:44)

Komodo dragons have a deadly bite. Sometimes there is a bit of waiting involved, but one good bite can often kill an animal many times the dragon's size. Meet the Komodo dragon in this video from Animal Planet.

The Jeff Corwin Experience: The Gator Grab (2:14)

Jeff Corwin, star of Animal Planet's hit show, the Jeff Corwin Experience, gets into a sticky spot with an American alligator.

Austin Stevens: Spectacled Cobra (3:08)

Animal Planet's Austin Stevens captures an extremely agitated spectacled cobra on camera and nearly gets bitten in the process.

Austin Stevens: Deadly Strikes (4:29)

Despite sustaining a nasty cobra bite, the Snakemaster's appetite for fabulous photos forces him to go back for the shot.

Butaan the Lost Dragon: A Forgotten Species (1:29)

The Butaan lizard was lost to science for 135 years. Now that it's back on the radar, can we keep it from vanishing for good? Find out in this video from Animal Planet.

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Bindi Wrangles Croc (2:49)

Bindi Irwin takes part in securing a rather large crocodile from a net trap.

Reptiles: Lizard Locomotion (2:04)

Lizards' legs are mounted sideways: they are better sprinters than distance runners. The same muscles lizards use to breathe are used to sway their bodies side-to-side.

Reptiles: Snakes' Senses (2:47)

There are 2,700 species of snakes. Snakes only hear vibrations and can detect tiny differences in temperature and scent. Snakes “taste” the wind with their forked-tongues.

Reptiles: Komodo Dragons (3:48)

Komodo Dragons taste the wind, like snakes, with their forked tongues and are very sensitive to heat. Camouflaged skin helps them hide in trees.

Reptiles: Introduction to Reptiles (3:07)

Reptiles include the turtles, lizards, alligators, crocodiles and snakes of the world. All have scaly skin and are ectothermic, or cold-blooded. Reptiles are specially adapted for life in both water and on dry land.

Natural Focus: Using Fossil Evidence (3:21)

Dinosaur tracks can be measured to learn about the size and speed of dinosaurs, as well as their social habits.

Natural Focus: Dinosaurs in New England (1:08)

The first good set of dinosaur tracks in North America was found in Connecticut. The people that saw the tracks thought they had been made by large birds.

Natural Focus: Conservation and the Timber Rattlesnake (0:34)

How can humans preserve the timber rattlesnake for generations to come? Check out this video to learn more.

Natural Focus: The Life of the Timber Rattlesnake (2:33)

Watch this segment to learn how the timber rattlesnake congregates in communal hibernation dens and bears young as the seasons progress.