On average, the tuatara lives for 60 years, but it can live to be older than 100. The oldest known living tuatara is Henry, a ...

The tuatara is an animal of its own. At first glance, the tuatara looks like your average lizard. However, it belongs to a separate group of reptiles known as the rhynchocephalians.

150 million years ago, a prehistoric reptile unlike modern lizards slinked around what is now Wyoming. An ancient rhynchocephalian, the insect-eating animal’s discovery could shed light on the ...

At present, the only living animal of the order Rhynchocephalia is the tuatara, a small, iguana-like reptile endemic to New Zealand. However, researchers believe rhynchocephalians were once found ...

On Tiritiri Matangi Island, New Zealand, a wildlife ranger captured a rare video of a tuatara, the country’s largest reptile, and a takahē, a flightless bird, engaging in a fight.