This is a tuatara video.
From the New Zealand Herald:
Tuatara find safe haven on second gulf island
By Vaimoana Tapaleao
8:25 AM Monday Mar 26, 2012
The release is part of a project led by the Motuihe Trust to establish a population of tuatara near Auckland and therefore more accessible. The Department of Conservation is also involved in the project.
There have been no mice, rats, rabbits or feral cats on the island for seven years. It is hoped that the move to the pest-free zone will ensure the population of tuatara thrives to be enjoyed for generations to come.
Trust chairman John Laurence said that with up to 350,000 native trees planted, Motuihe Island was the perfect home not only for tuatara but other wildlife living there including kakariki, little spotted kiwi, shore skink and kiwi.
DoC Auckland area manager Brett Butland said a lot of work had been done at the island to make sure endangered wildlife there would be safe.
He stressed that people travelling to such islands must check their vessels for pests.
See also here.
Tuatara reptile slices food with ‘steak-knife teeth’: here.
Pleurosaurus, the Jurassic marine-dwelling relative of the tuatara: here.