After years of searching with his dad, fifth-grader Jaxon Hinton uncovered a remarkably preserved prehistoric shark tooth estimated to be 18 million years old ...

We all know dinosaurs were scary. Tyrannosaurus rex was one of the largest land carnivores of all time, weighing between 11,000 and 15,500 pounds, the equivalent of almost three adult African ...

These days, all fish have teeth. The shapes of their teeth vary according to diet, ranging from the little pegs of goldfish to the formidable, pointed teeth of sharks. But fish evolved from toothless ...