The first 3D reconstructions of extinct Cretaceous birds reveal a reptilian tooth replacement pattern. The birds flapping around in the Age of Dinosaurs had all sorts of different teeth in their ...

The teeth of gnathostomes (jawed vertebrates) show rigidly patterned, unidirectional replacement that may or may not be associated with a shedding mechanism. These mechanisms, which are critical for ...

Could this gator’s teeth hold clues for regenerating humans’ pearly whites? Photo by Flickr user montuschi Humans drew the short end of the toothbrush when it comes to our pearly whites’ longevity.