There was once a thriving group of reptiles that lived during the time of the dinosaurs. Rhynchocephalia is a reptile order that evolved around 240 million years ago. These reptiles used to live ...

This “third eye,” or parietal eye ... it could have something to do with regulating the circadian rhythm. The tuatara ...

One of the most unique features of the tuatara is its third “parietal” eye, located on top of its head. This eye helps the tuatara regulate its body temperature. Thanks to its slow metabolism ...

SSC North America Still, it took 10 years—and many millions of dollars—to fully develop the Tuatara, and only 100 will ever be made, at a rate of roughly 20 per year. SSC North America The ...