Just like our gut microbiome, microbes living in a tuatara's tum help them digest their food and keep them healthy and well.

There was once a thriving group of reptiles that lived during the time of the dinosaurs. Rhynchocephalia is a reptile order ...

As the tuatara ages, it has to switch to a softer diet. They live incredibly long lives. On average, the tuatara lives for 60 years, but it can live to be older than 100. The oldest known living ...