Tuatara in New Zealand are the last surviving members of the order Sphenodontia that was around during the time of the dinosaurs. They like cool weather and have an average lifespan of 60 years though some may survive up to 100 years. In the wild, the tuatara can only be found on the islands around New Zealand. They are no longer on the mainland and went extinct when the Maori introduced the rat to New Zealand. In 2003, the tuatara was reintroduced to Tiritiri Matangi Island after an absence of 100 years.