On the brink of extinction just a decade ago, the Grand Cayman blue iguana has made a major comeback. The blue iguana is one of the longest-living species of lizard (possibly up to 69 years). The record is 67 years.
Blue-tongued lizards, or skinks, have vivid cobalt-colored tongues. Native only to Australia, they& docile creatures that are often kept as pets. They& also the world& largest urban-dwelling wild lizards, and can grow as long as two feet!