Lizard
There are about 6,000 species, which live all over the world, except in cold climates. They range across all continents except Antarctica, as well as most oceanic island chains.  One type, the marine iguana, lives in the sea. Size varies greatly, from Geckos of a few inches or cm to the Komodo dragon of 3 meters (9 feet) and 70 kg (150 pounds).